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From ddek...@apache.org
Subject [2/4] incubator-freemarker-online-tester git commit: initial commit
Date Sat, 01 Apr 2017 19:47:17 GMT
http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/java/com/kenshoo/freemarker/util/DataModelParser.java
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diff --git a/src/main/java/com/kenshoo/freemarker/util/DataModelParser.java b/src/main/java/com/kenshoo/freemarker/util/DataModelParser.java
new file mode 100644
index 0000000..28cf6ff
--- /dev/null
+++ b/src/main/java/com/kenshoo/freemarker/util/DataModelParser.java
@@ -0,0 +1,264 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.kenshoo.freemarker.util;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.math.BigDecimal;
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.TimeZone;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.xml.parsers.DocumentBuilder;
+
+import org.springframework.util.StringUtils;
+import org.w3c.dom.Document;
+import org.xml.sax.ErrorHandler;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import freemarker.ext.dom.NodeModel;
+import freemarker.template.utility.DateUtil;
+import freemarker.template.utility.DateUtil.CalendarFieldsToDateConverter;
+import freemarker.template.utility.DateUtil.DateParseException;
+import freemarker.template.utility.DateUtil.TrivialCalendarFieldsToDateConverter;
+
+/**
+ * Parses the text that the user enters into the data model input field.
+ */
+public final class DataModelParser {
+
+    private static final String KEYWORD_NEGATIVE_INFINITY = "-Infinity";
+
+    private static final String KEYWORD_POSITIVE_INFINITY = "+Infinity";
+
+    private static final String KEYWORD_INFINITY = "Infinity";
+
+    private static final String KEYWORD_TRUE = "true";
+
+    private static final String KEYWORD_FALSE = "false";
+
+    private static final String KEYWORD_NULL = "null";
+
+    private static final String KEYWORD_NAN = "NaN";
+
+    /** Matches a line starting like "someVariable=". */
+    private static final Pattern ASSIGNMENT_START = Pattern.compile(
+            "^\\s*"
+            + "(\\p{L}[\\p{L}\\p{N}\\.:\\-_$@]*)" // name
+            + "[ \t]*=\\s*",
+            Pattern.MULTILINE);
+
+    /** Matches a value that starts like a number, or probably meant to be number at least. */
+    private static final Pattern NUMBER_LIKE = Pattern.compile("[+-]?[\\.,]?[0-9].*", Pattern.DOTALL);
+    
+    private static final ObjectMapper JSON_MAPPER = new ObjectMapper();
+
+    private DataModelParser() {
+        // Not meant to be instantiated
+    }
+
+    public static Map<String, Object> parse(String src, TimeZone timeZone) throws DataModelParsingException {
+        if (!StringUtils.hasText(src)) {
+            return Collections.emptyMap();
+        }
+
+        Map<String, Object> dataModel = new LinkedHashMap<>();
+
+        String lastName = null;
+        int lastAssignmentStartEnd = 0;
+        final Matcher assignmentStart = ASSIGNMENT_START.matcher(src);
+        findAssignments: while (true) {
+            boolean hasNextAssignment = assignmentStart.find(lastAssignmentStartEnd);
+
+            if (lastName != null) {
+                String value = src.substring(
+                        lastAssignmentStartEnd, hasNextAssignment ? assignmentStart.start() : src.length())
+                        .trim();
+                final Object parsedValue;
+                try {
+                    parsedValue = parseValue(value, timeZone);
+                } catch (DataModelParsingException e) {
+                    throw new DataModelParsingException(
+                            "Failed to parse the value of \"" + lastName + "\":\n" + e.getMessage(), e.getCause());
+                }
+                dataModel.put(lastName, parsedValue);
+            }
+
+            if (lastName == null && (!hasNextAssignment || assignmentStart.start() != 0)) {
+                throw new DataModelParsingException(
+                        "The data model specification must start with an assignment (name=value).");
+            }
+
+            if (!hasNextAssignment) {
+                break findAssignments;
+            }
+
+            lastName = assignmentStart.group(1).trim();
+            lastAssignmentStartEnd = assignmentStart.end();
+        }
+
+        return dataModel;
+    }
+    
+    private static Object parseValue(String value, TimeZone timeZone) throws DataModelParsingException {
+        // Note: Because we fall back to interpret the input as a literal string value when it doesn't look like
+        // anything else (like a number, boolean, etc.), it's important to avoid misunderstandings, and throw exception
+        // in suspicious situations. The user can always quote the string value if we are "too smart". But he will
+        // be confused about the rules of FreeMarker if what he believes to be a non-string is misinterpreted by this
+        // parser as a string. Getting sometimes an error and then quoting the string is better than that.
+        
+        if (value.endsWith(";")) {  // Tolerate this habit of Java and JavaScript programmers
+            value = value.substring(value.length() - 1).trim();
+        }
+        
+        if (NUMBER_LIKE.matcher(value).matches()) {
+            try {
+                return new BigDecimal(value);
+            } catch (NumberFormatException e) {
+                // Maybe it's a ISO 8601 Date/time/datetime
+                CalendarFieldsToDateConverter calToDateConverter = new TrivialCalendarFieldsToDateConverter();
+                
+                DateParseException attemptedTemportalPExc = null;
+                String attemptedTemporalType = null;
+                final int dashIdx = value.indexOf('-');
+                final int colonIdx = value.indexOf(':');
+                if (value.indexOf('T') > 1 || (dashIdx > 1 && colonIdx > dashIdx)) {
+                    try {
+                        return new Timestamp(
+                                DateUtil.parseISO8601DateTime(value, timeZone, calToDateConverter).getTime());
+                    } catch (DateParseException pExc) {
+                        attemptedTemporalType = "date-time";
+                        attemptedTemportalPExc = pExc;
+                    }
+                } else if (dashIdx > 1) {
+                    try {
+                        return new java.sql.Date(
+                                DateUtil.parseISO8601Date(value, timeZone, calToDateConverter).getTime());
+                    } catch (DateParseException pExc) {
+                        attemptedTemporalType = "date";
+                        attemptedTemportalPExc = pExc;
+                    }
+                } else if (colonIdx > 1) { 
+                    try {
+                        return new Time(
+                                DateUtil.parseISO8601Time(value, timeZone, calToDateConverter).getTime());
+                    } catch (DateParseException pExc) {
+                        attemptedTemporalType = "time";
+                        attemptedTemportalPExc = pExc;
+                    }
+                }
+                if (attemptedTemportalPExc == null) {
+                    throw new DataModelParsingException("Malformed number: " + value, e);
+                } else {
+                    throw new DataModelParsingException(
+                            "Malformed ISO 8601 " + attemptedTemporalType + " (or malformed number): " + 
+                            attemptedTemportalPExc.getMessage(), e.getCause());
+                }
+            }
+        } else if (value.startsWith("\"")) {
+            try {
+                return JSON_MAPPER.readValue(value, String.class);
+            } catch (IOException e) {
+                throw new DataModelParsingException(
+                        "Malformed quoted string (using JSON syntax): " + getMessageWithoutLocation(e),
+                        e);
+            }
+        } else if (value.startsWith("\'")) {
+            throw new DataModelParsingException(
+                    "Malformed quoted string (using JSON syntax): Use \" character for quotation, not \' character.");
+        } else if (value.startsWith("[")) {
+            try {
+                return JSON_MAPPER.readValue(value, List.class);
+            } catch (IOException e) {
+                throw new DataModelParsingException(
+                        "Malformed list (using JSON syntax): " + getMessageWithoutLocation(e),
+                        e);
+            }
+        } else if (value.startsWith("{")) {
+            try {
+                return JSON_MAPPER.readValue(value, LinkedHashMap.class);
+            } catch (IOException e) {
+                throw new DataModelParsingException(
+                        "Malformed list (using JSON syntax): " + getMessageWithoutLocation(e),
+                        e);
+            }
+        } else if (value.startsWith("<")) {
+            try {
+                DocumentBuilder builder = NodeModel.getDocumentBuilderFactory().newDocumentBuilder();
+                ErrorHandler errorHandler = NodeModel.getErrorHandler();
+                if (errorHandler != null) builder.setErrorHandler(errorHandler);
+                final Document doc = builder.parse(new InputSource(new StringReader(value)));
+                NodeModel.simplify(doc);
+                return doc;
+            } catch (SAXException e) {
+                final String saxMsg = e.getMessage();
+                throw new DataModelParsingException("Malformed XML: " + (saxMsg != null ? saxMsg : e), e);
+            } catch (Exception e) {
+                throw new DataModelParsingException("XML parsing has failed with internal error: " + e, e);
+            }
+        } else if (value.equalsIgnoreCase(KEYWORD_TRUE)) {
+            checkKeywordCase(value, KEYWORD_TRUE);
+            return Boolean.TRUE;
+        } else if (value.equalsIgnoreCase(KEYWORD_FALSE)) {
+            checkKeywordCase(value, KEYWORD_FALSE);
+            return Boolean.FALSE;
+        } else if (value.equalsIgnoreCase(KEYWORD_NULL)) {
+            checkKeywordCase(value, KEYWORD_NULL);
+            return null;
+        } else if (value.equalsIgnoreCase(KEYWORD_NAN)) {
+            checkKeywordCase(value, KEYWORD_NAN);
+            return Double.NaN;
+        } else if (value.equalsIgnoreCase(KEYWORD_INFINITY)) {
+            checkKeywordCase(value, KEYWORD_INFINITY);
+            return Double.POSITIVE_INFINITY;
+        } else if (value.equalsIgnoreCase(KEYWORD_POSITIVE_INFINITY)) {
+            checkKeywordCase(value, KEYWORD_POSITIVE_INFINITY);
+            return Double.POSITIVE_INFINITY;
+        } else if (value.equalsIgnoreCase(KEYWORD_NEGATIVE_INFINITY)) {
+            checkKeywordCase(value, KEYWORD_NEGATIVE_INFINITY);
+            return Double.NEGATIVE_INFINITY;
+        } else if (value.length() == 0) {
+            throw new DataModelParsingException(
+                    "Empty value. (If you indeed wanted a 0 length string, quote it, like \"\".)");
+        } else {
+            return value;
+        }
+    }
+
+    private static String getMessageWithoutLocation(IOException e) {
+        return e instanceof JsonProcessingException
+                ? ((JsonProcessingException) e).getOriginalMessage()
+                : e.getMessage();
+    }
+
+    private static void checkKeywordCase(String inputKeyword, String correctKeyword) throws DataModelParsingException {
+        if (!correctKeyword.equals(inputKeyword)) {
+            throw new DataModelParsingException("Keywords are case sensitive; the correct form is: "
+                    + correctKeyword);
+        }
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/java/com/kenshoo/freemarker/util/DataModelParsingException.java
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diff --git a/src/main/java/com/kenshoo/freemarker/util/DataModelParsingException.java b/src/main/java/com/kenshoo/freemarker/util/DataModelParsingException.java
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index 0000000..cd24407
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+++ b/src/main/java/com/kenshoo/freemarker/util/DataModelParsingException.java
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+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.kenshoo.freemarker.util;
+
+import java.util.TimeZone;
+
+/**
+ * Thrown by {@link DataModelParser#parse(String, TimeZone)}.
+ */
+public class DataModelParsingException extends Exception {
+
+    private static final long serialVersionUID = 1L;
+
+    public DataModelParsingException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public DataModelParsingException(String message) {
+        super(message);
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/java/com/kenshoo/freemarker/util/ExceptionUtils.java
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diff --git a/src/main/java/com/kenshoo/freemarker/util/ExceptionUtils.java b/src/main/java/com/kenshoo/freemarker/util/ExceptionUtils.java
new file mode 100644
index 0000000..999c450
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+++ b/src/main/java/com/kenshoo/freemarker/util/ExceptionUtils.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.kenshoo.freemarker.util;
+
+import freemarker.core.ParseException;
+import freemarker.template.TemplateException;
+
+public final class ExceptionUtils {
+
+    private ExceptionUtils() {
+        // Not meant to be instantiated
+    }
+
+    /**
+     * The error message (and sometimes also the class), and then the same with the cause exception, and so on. Doesn't
+     * contain the stack trace or other location information.
+     */
+    public static String getMessageWithCauses(final Throwable exc) {
+        StringBuilder sb = new StringBuilder();
+        
+        Throwable curExc = exc;
+        while (curExc != null) {
+            if (curExc != exc) {
+                sb.append("\n\nCaused by:\n");
+            }
+            String msg = curExc.getMessage();
+            if (msg == null || !(curExc instanceof TemplateException || curExc instanceof ParseException)) {
+                sb.append(curExc.getClass().getName()).append(": ");
+            }
+            sb.append(msg);
+            curExc = curExc.getCause();
+        }
+        return sb.toString();
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/java/com/kenshoo/freemarker/util/LengthLimitExceededException.java
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diff --git a/src/main/java/com/kenshoo/freemarker/util/LengthLimitExceededException.java b/src/main/java/com/kenshoo/freemarker/util/LengthLimitExceededException.java
new file mode 100644
index 0000000..67effd0
--- /dev/null
+++ b/src/main/java/com/kenshoo/freemarker/util/LengthLimitExceededException.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.kenshoo.freemarker.util;
+
+import java.io.IOException;
+
+/**
+ * Thrown by {@link LengthLimitedWriter}.
+ */
+public class LengthLimitExceededException extends IOException {
+
+    private static final long serialVersionUID = 1L;
+    
+    public LengthLimitExceededException() {
+        super("The outout String length limit of the Writer was exceeded.");
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/java/com/kenshoo/freemarker/util/LengthLimitedWriter.java
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diff --git a/src/main/java/com/kenshoo/freemarker/util/LengthLimitedWriter.java b/src/main/java/com/kenshoo/freemarker/util/LengthLimitedWriter.java
new file mode 100644
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+++ b/src/main/java/com/kenshoo/freemarker/util/LengthLimitedWriter.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.kenshoo.freemarker.util;
+
+import java.io.FilterWriter;
+import java.io.IOException;
+import java.io.StringWriter;
+import java.io.Writer;
+
+/**
+ * A {@link StringWriter} that limits its buffer size, and throws {@link LengthLimitExceededException} when that's
+ * exceeded.
+ */
+public class LengthLimitedWriter extends FilterWriter {
+    
+    private int lengthLeft;
+
+    public LengthLimitedWriter(Writer writer, int lengthLimit) {
+        super(writer);
+        this.lengthLeft = lengthLimit;
+    }
+
+    @Override
+    public void write(int c) throws IOException {
+        if (lengthLeft < 1) {
+            throw new LengthLimitExceededException();
+        }
+        
+        super.write(c);
+        
+        lengthLeft--;
+    }
+
+    @Override
+    public void write(char[] cbuf, int off, int len) throws IOException {
+        final boolean lengthExceeded;
+        if (lengthLeft < len) {
+            len = lengthLeft;
+            lengthExceeded = true;
+        } else {
+            lengthExceeded = false;
+        }
+        
+        super.write(cbuf, off, len);
+        lengthLeft -= len;
+        
+        if (lengthExceeded) {
+            throw new LengthLimitExceededException();
+        }
+    }
+
+    @Override
+    public void write(String str, int off, int len) throws IOException {
+        final boolean lengthExceeded;
+        if (lengthLeft < len) {
+            len = lengthLeft;
+            lengthExceeded = true;
+        } else {
+            lengthExceeded = false;
+        }
+        
+        super.write(str, off, len);
+        lengthLeft -= len;
+        
+        if (lengthExceeded) {
+            throw new LengthLimitExceededException();
+        }
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/java/com/kenshoo/freemarker/view/FreeMarkerOnlineView.java
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diff --git a/src/main/java/com/kenshoo/freemarker/view/FreeMarkerOnlineView.java b/src/main/java/com/kenshoo/freemarker/view/FreeMarkerOnlineView.java
new file mode 100644
index 0000000..684511f
--- /dev/null
+++ b/src/main/java/com/kenshoo/freemarker/view/FreeMarkerOnlineView.java
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.kenshoo.freemarker.view;
+
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+import org.apache.commons.lang3.StringUtils;
+
+import com.kenshoo.freemarker.model.SelectionOption;
+import com.kenshoo.freemarker.services.AllowedSettingValuesMaps;
+import com.yammer.dropwizard.views.View;
+
+import freemarker.template.Configuration;
+
+/**
+ * Created with IntelliJ IDEA. User: nir Date: 4/11/14 Time: 12:23 PM
+ */
+public class FreeMarkerOnlineView extends View {
+
+    private static final List<SelectionOption> LOCALE_SELECTION_OPTIONS = toLocaleSelectionOptions(AllowedSettingValuesMaps.LOCALE_MAP);
+    private static final List<SelectionOption> TIME_ZONE_SELECTION_OPTIONS = toSelectionOptions(AllowedSettingValuesMaps.TIME_ZONE_MAP);
+    private static final List<SelectionOption> OUTPUT_FORMAT_SELECTION_OPTIONS = toSelectionOptions(AllowedSettingValuesMaps.OUTPUT_FORMAT_MAP);
+    
+    private String template = "";
+    private String dataModel = "";
+    private String outputFormat = AllowedSettingValuesMaps.DEFAULT_OUTPUT_FORMAT_KEY;
+    private String locale = AllowedSettingValuesMaps.DEFAULT_LOCALE_KEY;
+    private String timeZone = AllowedSettingValuesMaps.DEFAULT_TIME_ZONE_KEY;
+    
+    private boolean execute;
+    
+    private static List<SelectionOption> toSelectionOptions(Map<String, ?> settingValueMap) {
+        ArrayList<SelectionOption> selectionOptions = new ArrayList<SelectionOption>(settingValueMap.size());
+        for (String key : settingValueMap.keySet()) {
+            selectionOptions.add(new SelectionOption(key, truncate(key, 25)));
+        }
+        Collections.sort(selectionOptions);
+        return selectionOptions;
+    }
+    
+    private static List<SelectionOption> toLocaleSelectionOptions(Map<String, Locale> localeMap) {
+        ArrayList<SelectionOption> selectionOptions = new ArrayList<SelectionOption>(localeMap.size());
+        for (Map.Entry<String, Locale> ent : localeMap.entrySet()) {
+            Locale locale = ent.getValue();
+            selectionOptions.add(
+                    new SelectionOption(ent.getKey(),
+                    truncate(locale.getDisplayName(Locale.US), 18) + "; " + locale.toString()));
+        }
+        Collections.sort(selectionOptions);
+        return selectionOptions;
+    }
+    
+    private static String truncate(String s, int maxLength) {
+        if (s == null) {
+            return null;
+        }
+        return s.length() <= maxLength ? s : s.substring(0, Math.max(maxLength - 3, 0)) + "[...]";
+    }    
+
+    /**
+     *
+     * @param template
+     * @param dataModel
+     * @param execute set to true if the execution should be triggered on page load.
+     */
+    public FreeMarkerOnlineView() {
+        super("/view/freemarker-online.ftl", Charset.forName("utf-8"));
+    }
+
+    public String getTemplate() {
+        return template;
+    }
+
+    public void setTemplate(String template) {
+        this.template = withDefault(template, "");
+    }
+
+    public String getDataModel() {
+        return dataModel;
+    }
+
+    public void setDataModel(String dataModel) {
+        this.dataModel = withDefault(dataModel, "");
+    }
+
+    public String getFreeMarkerVersion() {
+        return Configuration.getVersion().toString();
+    }
+    
+    public List<SelectionOption> getOutputFormats() {
+        return OUTPUT_FORMAT_SELECTION_OPTIONS;
+    }
+
+    public List<SelectionOption> getLocales() {
+        return LOCALE_SELECTION_OPTIONS;
+    }
+
+    public List<SelectionOption> getTimeZones() {
+        return TIME_ZONE_SELECTION_OPTIONS;
+    }
+
+    public String getOutputFormat() {
+        return outputFormat;
+    }
+
+    public void setOutputFormat(String outputFormat) {
+        this.outputFormat = withDefault(outputFormat, AllowedSettingValuesMaps.DEFAULT_OUTPUT_FORMAT_KEY);
+    }
+
+    public String getLocale() {
+        return locale;
+    }
+
+    public void setLocale(String locale) {
+        this.locale = withDefault(locale, AllowedSettingValuesMaps.DEFAULT_LOCALE_KEY);
+    }
+
+    public String getTimeZone() {
+        return timeZone;
+    }
+
+    public void setTimeZone(String timeZone) {
+        this.timeZone = withDefault(timeZone, AllowedSettingValuesMaps.DEFAULT_TIME_ZONE_KEY);
+    }
+    
+    public boolean isExecute() {
+        return execute;
+    }
+
+    public void setExecute(boolean executeImmediately) {
+        this.execute = executeImmediately;
+    }
+
+    private static String withDefault(String value, String defaultValue) {
+        return !StringUtils.isBlank(value) ? value : defaultValue;
+    }
+    
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/java/freemarker/core/FreeMarkerInternalsAccessor.java
----------------------------------------------------------------------
diff --git a/src/main/java/freemarker/core/FreeMarkerInternalsAccessor.java b/src/main/java/freemarker/core/FreeMarkerInternalsAccessor.java
new file mode 100644
index 0000000..1ffc7f7
--- /dev/null
+++ b/src/main/java/freemarker/core/FreeMarkerInternalsAccessor.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package freemarker.core;
+
+import freemarker.core.ThreadInterruptionSupportTemplatePostProcessor.TemplateProcessingThreadInterruptedException;
+import freemarker.template.Template;
+
+/**
+ * Functions that depend on unpublished FreeMarker functionality. Might need to be adjusted for new FreeMarker releases.
+ * The relevant parts of the FreeMarker source code contains comments about keeping this in sync with that, so,
+ * hopefully this won't be a problem.
+ */
+public final class FreeMarkerInternalsAccessor {
+
+    /**
+     * Ensures that the template will react to {@link #interruptTemplateProcessing(Thread)}. 
+     */
+    public static void makeTemplateInterruptable(Template template) {
+        _CoreAPI.addThreadInterruptedChecks(template);
+    }
+
+    /**
+     * Checks if the template processing has thrown exception because of a {@link #interruptTemplateProcessing(Thread)}
+     * call.
+     */
+    public static boolean isTemplateProcessingInterruptedException(Throwable e) {
+        return e instanceof TemplateProcessingThreadInterruptedException;
+    }
+
+    /**
+     * Tells a template processing in another thread to abort; asynchronous.
+     */
+    public static void interruptTemplateProcessing(Thread t) {
+        t.interrupt();
+    }
+
+    /**
+     * Called from the thread where the interruptible template execution ran earlier, to clear any related thread state.
+     */
+    public static void clearAnyPendingTemplateProcessingInterruption() {
+        Thread.interrupted();  // To clears the interruption flag 
+    }
+    
+    private FreeMarkerInternalsAccessor() {
+        // Not meant to be instantiated
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/assets/css/main.css
----------------------------------------------------------------------
diff --git a/src/main/resources/assets/css/main.css b/src/main/resources/assets/css/main.css
new file mode 100644
index 0000000..44b8972
--- /dev/null
+++ b/src/main/resources/assets/css/main.css
@@ -0,0 +1,114 @@
+.clear {
+  clear: both;
+}
+
+#layout {
+	position: relative;
+	padding: 0;
+}
+
+.header {
+	margin: 0;
+	padding: 1em 0;
+	border-bottom: 1px solid #eee;
+	text-align: center;
+	color: #444;
+}
+
+.content {
+    margin: 0 auto;
+    padding: 1em 0;
+    width: 920px;
+}
+
+.footer {
+    margin: 0;
+    padding: 1em 2em 0;
+    border-top: 1px solid #eee;
+    text-align: center;
+    color: #444;
+}
+
+.errorMessage {
+    font-size: small;
+    color: red;
+    display: none;
+}
+
+.header h1 {
+    margin: 0.2em 0;
+    font-size: 1.75em;
+    font-weight: normal;
+}
+
+#result {
+    background-color: #FFF;
+    color: #000	
+}
+
+#result.error {
+    background-color: #FFF0F0;
+	color: #A00;
+}
+
+.faint {
+	color: #bbb
+}
+
+textarea.source-code {
+	font-family: monospace !important;
+    /* We set a few more things to decrease the chance of jQuery Autosize plugin issues: */
+    font-size: 1em !important;  
+	resize: none !important;
+    line-height: 1em !important;
+}
+
+.hiddenByDefault {
+   display: none;
+}
+
+#dataModelExamples {
+	background: #eee;
+	padding: 4px;
+	margin: 0;
+}
+
+#dataModelExamples .description {
+	font-style: italic;
+	margin-bottom: 1em;
+}
+
+#dataModelExamples pre {
+  font-family: monospace;
+  font-size: 1em;
+  padding: 0;
+  margin: 0;
+}
+
+#templateAndModelForm input,
+#templateAndModelForm textarea,
+#templateAndModelForm button {
+	margin-bottom: 1em;
+}
+
+#templateAndModelForm label {
+    margin-top: 1em;
+    margin-bottom: 0.25em;
+}
+
+.formPanel {
+	
+}
+
+.formBottomButtonsContainer {
+    margin-top: 1.5em;
+}
+
+.resultContainer {
+    margin-top: 1em;
+}
+
+.horizontalBox {
+    display: inline-block;
+		padding-right: 1em;	
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/assets/js/autosize.min.js
----------------------------------------------------------------------
diff --git a/src/main/resources/assets/js/autosize.min.js b/src/main/resources/assets/js/autosize.min.js
new file mode 100644
index 0000000..98138c9
--- /dev/null
+++ b/src/main/resources/assets/js/autosize.min.js
@@ -0,0 +1,6 @@
+/*!
+	Autosize 3.0.8
+	license: MIT
+	http://www.jacklmoore.com/autosize
+*/
+!function(e,t){if("function"==typeof define&&define.amd)define(["exports","module"],t);else if("undefined"!=typeof exports&&"undefined"!=typeof module)t(exports,module);else{var o={exports:{}};t(o.exports,o),e.autosize=o.exports}}(this,function(e,t){"use strict";function o(e){function t(){var t=window.getComputedStyle(e,null);"vertical"===t.resize?e.style.resize="none":"both"===t.resize&&(e.style.resize="horizontal"),u="content-box"===t.boxSizing?-(parseFloat(t.paddingTop)+parseFloat(t.paddingBottom)):parseFloat(t.borderTopWidth)+parseFloat(t.borderBottomWidth),i()}function o(t){var o=e.style.width;e.style.width="0px",e.offsetWidth,e.style.width=o,v=t,l&&(e.style.overflowY=t),n()}function n(){var t=window.pageYOffset,o=document.body.scrollTop,n=e.style.height;e.style.height="auto";var i=e.scrollHeight+u;return 0===e.scrollHeight?void(e.style.height=n):(e.style.height=i+"px",document.documentElement.scrollTop=t,void(document.body.scrollTop=o))}function i(){var t=e.style.height;n();va
 r i=window.getComputedStyle(e,null);if(i.height!==e.style.height?"visible"!==v&&o("visible"):"hidden"!==v&&o("hidden"),t!==e.style.height){var r=document.createEvent("Event");r.initEvent("autosize:resized",!0,!1),e.dispatchEvent(r)}}var r=void 0===arguments[1]?{}:arguments[1],d=r.setOverflowX,s=void 0===d?!0:d,a=r.setOverflowY,l=void 0===a?!0:a;if(e&&e.nodeName&&"TEXTAREA"===e.nodeName&&!e.hasAttribute("data-autosize-on")){var u=null,v="hidden",f=function(t){window.removeEventListener("resize",i),e.removeEventListener("input",i),e.removeEventListener("keyup",i),e.removeAttribute("data-autosize-on"),e.removeEventListener("autosize:destroy",f),Object.keys(t).forEach(function(o){e.style[o]=t[o]})}.bind(e,{height:e.style.height,resize:e.style.resize,overflowY:e.style.overflowY,overflowX:e.style.overflowX,wordWrap:e.style.wordWrap});e.addEventListener("autosize:destroy",f),"onpropertychange"in e&&"oninput"in e&&e.addEventListener("keyup",i),window.addEventListener("resize",i),e.addEventL
 istener("input",i),e.addEventListener("autosize:update",i),e.setAttribute("data-autosize-on",!0),l&&(e.style.overflowY="hidden"),s&&(e.style.overflowX="hidden",e.style.wordWrap="break-word"),t()}}function n(e){if(e&&e.nodeName&&"TEXTAREA"===e.nodeName){var t=document.createEvent("Event");t.initEvent("autosize:destroy",!0,!1),e.dispatchEvent(t)}}function i(e){if(e&&e.nodeName&&"TEXTAREA"===e.nodeName){var t=document.createEvent("Event");t.initEvent("autosize:update",!0,!1),e.dispatchEvent(t)}}var r=null;"undefined"==typeof window||"function"!=typeof window.getComputedStyle?(r=function(e){return e},r.destroy=function(e){return e},r.update=function(e){return e}):(r=function(e,t){return e&&Array.prototype.forEach.call(e.length?e:[e],function(e){return o(e,t)}),e},r.destroy=function(e){return e&&Array.prototype.forEach.call(e.length?e:[e],n),e},r.update=function(e){return e&&Array.prototype.forEach.call(e.length?e:[e],i),e}),t.exports=r});
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/assets/js/jquery.autosize.min.js
----------------------------------------------------------------------
diff --git a/src/main/resources/assets/js/jquery.autosize.min.js b/src/main/resources/assets/js/jquery.autosize.min.js
new file mode 100644
index 0000000..5c764dc
--- /dev/null
+++ b/src/main/resources/assets/js/jquery.autosize.min.js
@@ -0,0 +1,6 @@
+/*!
+	Autosize 1.18.17
+	license: MIT
+	http://www.jacklmoore.com/autosize
+*/
+!function(e){var t,o={className:"autosizejs",id:"autosizejs",append:"\n",callback:!1,resizeDelay:10,placeholder:!0},i='<textarea tabindex="-1" style="position:absolute; top:-999px; left:0; right:auto; bottom:auto; border:0; padding: 0; -moz-box-sizing:content-box; -webkit-box-sizing:content-box; box-sizing:content-box; word-wrap:break-word; height:0 !important; min-height:0 !important; overflow:hidden; transition:none; -webkit-transition:none; -moz-transition:none;"/>',a=["fontFamily","fontSize","fontWeight","fontStyle","letterSpacing","textTransform","wordSpacing","textIndent","whiteSpace"],n=e(i).data("autosize",!0)[0];n.style.lineHeight="99px","99px"===e(n).css("lineHeight")&&a.push("lineHeight"),n.style.lineHeight="",e.fn.autosize=function(i){return this.length?(i=e.extend({},o,i||{}),n.parentNode!==document.body&&e(document.body).append(n),this.each(function(){function o(){var t,o=window.getComputedStyle?window.getComputedStyle(u,null):null;o?(t=parseFloat(o.width),("border-box
 "===o.boxSizing||"border-box"===o.webkitBoxSizing||"border-box"===o.mozBoxSizing)&&e.each(["paddingLeft","paddingRight","borderLeftWidth","borderRightWidth"],function(e,i){t-=parseFloat(o[i])})):t=p.width(),n.style.width=Math.max(t,0)+"px"}function s(){var s={};if(t=u,n.className=i.className,n.id=i.id,d=parseFloat(p.css("maxHeight")),e.each(a,function(e,t){s[t]=p.css(t)}),e(n).css(s).attr("wrap",p.attr("wrap")),o(),window.chrome){var r=u.style.width;u.style.width="0px";{u.offsetWidth}u.style.width=r}}function r(){var e,a;t!==u?s():o(),n.value=!u.value&&i.placeholder?p.attr("placeholder")||"":u.value,n.value+=i.append||"",n.style.overflowY=u.style.overflowY,a=parseFloat(u.style.height)||0,n.scrollTop=0,n.scrollTop=9e4,e=n.scrollTop,d&&e>d?(u.style.overflowY="scroll",e=d):(u.style.overflowY="hidden",c>e&&(e=c)),e+=z,Math.abs(a-e)>.01&&(u.style.height=e+"px",n.className=n.className,w&&i.callback.call(u,u),p.trigger("autosize.resized"))}function l(){clearTimeout(h),h=setTimeout(function
 (){var e=p.width();e!==b&&(b=e,r())},parseInt(i.resizeDelay,10))}var d,c,h,u=this,p=e(u),z=0,w=e.isFunction(i.callback),f={height:u.style.height,overflow:u.style.overflow,overflowY:u.style.overflowY,wordWrap:u.style.wordWrap,resize:u.style.resize},b=p.width(),g=p.css("resize");p.data("autosize")||(p.data("autosize",!0),("border-box"===p.css("box-sizing")||"border-box"===p.css("-moz-box-sizing")||"border-box"===p.css("-webkit-box-sizing"))&&(z=p.outerHeight()-p.height()),c=Math.max(parseFloat(p.css("minHeight"))-z||0,p.height()),p.css({overflow:"hidden",overflowY:"hidden",wordWrap:"break-word"}),"vertical"===g?p.css("resize","none"):"both"===g&&p.css("resize","horizontal"),"onpropertychange"in u?"oninput"in u?p.on("input.autosize keyup.autosize",r):p.on("propertychange.autosize",function(){"value"===event.propertyName&&r()}):p.on("input.autosize",r),i.resizeDelay!==!1&&e(window).on("resize.autosize",l),p.on("autosize.resize",r),p.on("autosize.resizeIncludeStyle",function(){t=null,r()
 }),p.on("autosize.destroy",function(){t=null,clearTimeout(h),e(window).off("resize",l),p.off("autosize").off(".autosize").css(f).removeData("autosize")}),r())})):this}}(jQuery||$);
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/assets/js/jquery.blockUI.js
----------------------------------------------------------------------
diff --git a/src/main/resources/assets/js/jquery.blockUI.js b/src/main/resources/assets/js/jquery.blockUI.js
new file mode 100644
index 0000000..90ce5d6
--- /dev/null
+++ b/src/main/resources/assets/js/jquery.blockUI.js
@@ -0,0 +1,620 @@
+/*!
+ * jQuery blockUI plugin
+ * Version 2.70.0-2014.11.23
+ * Requires jQuery v1.7 or later
+ *
+ * Examples at: http://malsup.com/jquery/block/
+ * Copyright (c) 2007-2013 M. Alsup
+ * Dual licensed under the MIT and GPL licenses:
+ * http://www.opensource.org/licenses/mit-license.php
+ * http://www.gnu.org/licenses/gpl.html
+ *
+ * Thanks to Amir-Hossein Sobhi for some excellent contributions!
+ */
+
+;(function() {
+/*jshint eqeqeq:false curly:false latedef:false */
+"use strict";
+
+	function setup($) {
+		$.fn._fadeIn = $.fn.fadeIn;
+
+		var noOp = $.noop || function() {};
+
+		// this bit is to ensure we don't call setExpression when we shouldn't (with extra muscle to handle
+		// confusing userAgent strings on Vista)
+		var msie = /MSIE/.test(navigator.userAgent);
+		var ie6  = /MSIE 6.0/.test(navigator.userAgent) && ! /MSIE 8.0/.test(navigator.userAgent);
+		var mode = document.documentMode || 0;
+		var setExpr = $.isFunction( document.createElement('div').style.setExpression );
+
+		// global $ methods for blocking/unblocking the entire page
+		$.blockUI   = function(opts) { install(window, opts); };
+		$.unblockUI = function(opts) { remove(window, opts); };
+
+		// convenience method for quick growl-like notifications  (http://www.google.com/search?q=growl)
+		$.growlUI = function(title, message, timeout, onClose) {
+			var $m = $('<div class="growlUI"></div>');
+			if (title) $m.append('<h1>'+title+'</h1>');
+			if (message) $m.append('<h2>'+message+'</h2>');
+			if (timeout === undefined) timeout = 3000;
+
+			// Added by konapun: Set timeout to 30 seconds if this growl is moused over, like normal toast notifications
+			var callBlock = function(opts) {
+				opts = opts || {};
+
+				$.blockUI({
+					message: $m,
+					fadeIn : typeof opts.fadeIn  !== 'undefined' ? opts.fadeIn  : 700,
+					fadeOut: typeof opts.fadeOut !== 'undefined' ? opts.fadeOut : 1000,
+					timeout: typeof opts.timeout !== 'undefined' ? opts.timeout : timeout,
+					centerY: false,
+					showOverlay: false,
+					onUnblock: onClose,
+					css: $.blockUI.defaults.growlCSS
+				});
+			};
+
+			callBlock();
+			var nonmousedOpacity = $m.css('opacity');
+			$m.mouseover(function() {
+				callBlock({
+					fadeIn: 0,
+					timeout: 30000
+				});
+
+				var displayBlock = $('.blockMsg');
+				displayBlock.stop(); // cancel fadeout if it has started
+				displayBlock.fadeTo(300, 1); // make it easier to read the message by removing transparency
+			}).mouseout(function() {
+				$('.blockMsg').fadeOut(1000);
+			});
+			// End konapun additions
+		};
+
+		// plugin method for blocking element content
+		$.fn.block = function(opts) {
+			if ( this[0] === window ) {
+				$.blockUI( opts );
+				return this;
+			}
+			var fullOpts = $.extend({}, $.blockUI.defaults, opts || {});
+			this.each(function() {
+				var $el = $(this);
+				if (fullOpts.ignoreIfBlocked && $el.data('blockUI.isBlocked'))
+					return;
+				$el.unblock({ fadeOut: 0 });
+			});
+
+			return this.each(function() {
+				if ($.css(this,'position') == 'static') {
+					this.style.position = 'relative';
+					$(this).data('blockUI.static', true);
+				}
+				this.style.zoom = 1; // force 'hasLayout' in ie
+				install(this, opts);
+			});
+		};
+
+		// plugin method for unblocking element content
+		$.fn.unblock = function(opts) {
+			if ( this[0] === window ) {
+				$.unblockUI( opts );
+				return this;
+			}
+			return this.each(function() {
+				remove(this, opts);
+			});
+		};
+
+		$.blockUI.version = 2.70; // 2nd generation blocking at no extra cost!
+
+		// override these in your code to change the default behavior and style
+		$.blockUI.defaults = {
+			// message displayed when blocking (use null for no message)
+			message:  '<h1>Please wait...</h1>',
+
+			title: null,		// title string; only used when theme == true
+			draggable: true,	// only used when theme == true (requires jquery-ui.js to be loaded)
+
+			theme: false, // set to true to use with jQuery UI themes
+
+			// styles for the message when blocking; if you wish to disable
+			// these and use an external stylesheet then do this in your code:
+			// $.blockUI.defaults.css = {};
+			css: {
+				padding:	0,
+				margin:		0,
+				width:		'30%',
+				top:		'40%',
+				left:		'35%',
+				textAlign:	'center',
+				color:		'#000',
+				border:		'3px solid #aaa',
+				backgroundColor:'#fff',
+				cursor:		'wait'
+			},
+
+			// minimal style set used when themes are used
+			themedCSS: {
+				width:	'30%',
+				top:	'40%',
+				left:	'35%'
+			},
+
+			// styles for the overlay
+			overlayCSS:  {
+				backgroundColor:	'#000',
+				opacity:			0.6,
+				cursor:				'wait'
+			},
+
+			// style to replace wait cursor before unblocking to correct issue
+			// of lingering wait cursor
+			cursorReset: 'default',
+
+			// styles applied when using $.growlUI
+			growlCSS: {
+				width:		'350px',
+				top:		'10px',
+				left:		'',
+				right:		'10px',
+				border:		'none',
+				padding:	'5px',
+				opacity:	0.6,
+				cursor:		'default',
+				color:		'#fff',
+				backgroundColor: '#000',
+				'-webkit-border-radius':'10px',
+				'-moz-border-radius':	'10px',
+				'border-radius':		'10px'
+			},
+
+			// IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w
+			// (hat tip to Jorge H. N. de Vasconcelos)
+			/*jshint scripturl:true */
+			iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank',
+
+			// force usage of iframe in non-IE browsers (handy for blocking applets)
+			forceIframe: false,
+
+			// z-index for the blocking overlay
+			baseZ: 1000,
+
+			// set these to true to have the message automatically centered
+			centerX: true, // <-- only effects element blocking (page block controlled via css above)
+			centerY: true,
+
+			// allow body element to be stetched in ie6; this makes blocking look better
+			// on "short" pages.  disable if you wish to prevent changes to the body height
+			allowBodyStretch: true,
+
+			// enable if you want key and mouse events to be disabled for content that is blocked
+			bindEvents: true,
+
+			// be default blockUI will supress tab navigation from leaving blocking content
+			// (if bindEvents is true)
+			constrainTabKey: true,
+
+			// fadeIn time in millis; set to 0 to disable fadeIn on block
+			fadeIn:  200,
+
+			// fadeOut time in millis; set to 0 to disable fadeOut on unblock
+			fadeOut:  400,
+
+			// time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
+			timeout: 0,
+
+			// disable if you don't want to show the overlay
+			showOverlay: true,
+
+			// if true, focus will be placed in the first available input field when
+			// page blocking
+			focusInput: true,
+
+            // elements that can receive focus
+            focusableElements: ':input:enabled:visible',
+
+			// suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity)
+			// no longer needed in 2012
+			// applyPlatformOpacityRules: true,
+
+			// callback method invoked when fadeIn has completed and blocking message is visible
+			onBlock: null,
+
+			// callback method invoked when unblocking has completed; the callback is
+			// passed the element that has been unblocked (which is the window object for page
+			// blocks) and the options that were passed to the unblock call:
+			//	onUnblock(element, options)
+			onUnblock: null,
+
+			// callback method invoked when the overlay area is clicked.
+			// setting this will turn the cursor to a pointer, otherwise cursor defined in overlayCss will be used.
+			onOverlayClick: null,
+
+			// don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493
+			quirksmodeOffsetHack: 4,
+
+			// class name of the message block
+			blockMsgClass: 'blockMsg',
+
+			// if it is already blocked, then ignore it (don't unblock and reblock)
+			ignoreIfBlocked: false
+		};
+
+		// private data and functions follow...
+
+		var pageBlock = null;
+		var pageBlockEls = [];
+
+		function install(el, opts) {
+			var css, themedCSS;
+			var full = (el == window);
+			var msg = (opts && opts.message !== undefined ? opts.message : undefined);
+			opts = $.extend({}, $.blockUI.defaults, opts || {});
+
+			if (opts.ignoreIfBlocked && $(el).data('blockUI.isBlocked'))
+				return;
+
+			opts.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, opts.overlayCSS || {});
+			css = $.extend({}, $.blockUI.defaults.css, opts.css || {});
+			if (opts.onOverlayClick)
+				opts.overlayCSS.cursor = 'pointer';
+
+			themedCSS = $.extend({}, $.blockUI.defaults.themedCSS, opts.themedCSS || {});
+			msg = msg === undefined ? opts.message : msg;
+
+			// remove the current block (if there is one)
+			if (full && pageBlock)
+				remove(window, {fadeOut:0});
+
+			// if an existing element is being used as the blocking content then we capture
+			// its current place in the DOM (and current display style) so we can restore
+			// it when we unblock
+			if (msg && typeof msg != 'string' && (msg.parentNode || msg.jquery)) {
+				var node = msg.jquery ? msg[0] : msg;
+				var data = {};
+				$(el).data('blockUI.history', data);
+				data.el = node;
+				data.parent = node.parentNode;
+				data.display = node.style.display;
+				data.position = node.style.position;
+				if (data.parent)
+					data.parent.removeChild(node);
+			}
+
+			$(el).data('blockUI.onUnblock', opts.onUnblock);
+			var z = opts.baseZ;
+
+			// blockUI uses 3 layers for blocking, for simplicity they are all used on every platform;
+			// layer1 is the iframe layer which is used to supress bleed through of underlying content
+			// layer2 is the overlay layer which has opacity and a wait cursor (by default)
+			// layer3 is the message content that is displayed while blocking
+			var lyr1, lyr2, lyr3, s;
+			if (msie || opts.forceIframe)
+				lyr1 = $('<iframe class="blockUI" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="'+opts.iframeSrc+'"></iframe>');
+			else
+				lyr1 = $('<div class="blockUI" style="display:none"></div>');
+
+			if (opts.theme)
+				lyr2 = $('<div class="blockUI blockOverlay ui-widget-overlay" style="z-index:'+ (z++) +';display:none"></div>');
+			else
+				lyr2 = $('<div class="blockUI blockOverlay" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');
+
+			if (opts.theme && full) {
+				s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:fixed">';
+				if ( opts.title ) {
+					s += '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || '&nbsp;')+'</div>';
+				}
+				s += '<div class="ui-widget-content ui-dialog-content"></div>';
+				s += '</div>';
+			}
+			else if (opts.theme) {
+				s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:absolute">';
+				if ( opts.title ) {
+					s += '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || '&nbsp;')+'</div>';
+				}
+				s += '<div class="ui-widget-content ui-dialog-content"></div>';
+				s += '</div>';
+			}
+			else if (full) {
+				s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage" style="z-index:'+(z+10)+';display:none;position:fixed"></div>';
+			}
+			else {
+				s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement" style="z-index:'+(z+10)+';display:none;position:absolute"></div>';
+			}
+			lyr3 = $(s);
+
+			// if we have a message, style it
+			if (msg) {
+				if (opts.theme) {
+					lyr3.css(themedCSS);
+					lyr3.addClass('ui-widget-content');
+				}
+				else
+					lyr3.css(css);
+			}
+
+			// style the overlay
+			if (!opts.theme /*&& (!opts.applyPlatformOpacityRules)*/)
+				lyr2.css(opts.overlayCSS);
+			lyr2.css('position', full ? 'fixed' : 'absolute');
+
+			// make iframe layer transparent in IE
+			if (msie || opts.forceIframe)
+				lyr1.css('opacity',0.0);
+
+			//$([lyr1[0],lyr2[0],lyr3[0]]).appendTo(full ? 'body' : el);
+			var layers = [lyr1,lyr2,lyr3], $par = full ? $('body') : $(el);
+			$.each(layers, function() {
+				this.appendTo($par);
+			});
+
+			if (opts.theme && opts.draggable && $.fn.draggable) {
+				lyr3.draggable({
+					handle: '.ui-dialog-titlebar',
+					cancel: 'li'
+				});
+			}
+
+			// ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
+			var expr = setExpr && (!$.support.boxModel || $('object,embed', full ? null : el).length > 0);
+			if (ie6 || expr) {
+				// give body 100% height
+				if (full && opts.allowBodyStretch && $.support.boxModel)
+					$('html,body').css('height','100%');
+
+				// fix ie6 issue when blocked element has a border width
+				if ((ie6 || !$.support.boxModel) && !full) {
+					var t = sz(el,'borderTopWidth'), l = sz(el,'borderLeftWidth');
+					var fixT = t ? '(0 - '+t+')' : 0;
+					var fixL = l ? '(0 - '+l+')' : 0;
+				}
+
+				// simulate fixed position
+				$.each(layers, function(i,o) {
+					var s = o[0].style;
+					s.position = 'absolute';
+					if (i < 2) {
+						if (full)
+							s.setExpression('height','Math.max(document.body.scrollHeight, document.body.offsetHeight) - (jQuery.support.boxModel?0:'+opts.quirksmodeOffsetHack+') + "px"');
+						else
+							s.setExpression('height','this.parentNode.offsetHeight + "px"');
+						if (full)
+							s.setExpression('width','jQuery.support.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"');
+						else
+							s.setExpression('width','this.parentNode.offsetWidth + "px"');
+						if (fixL) s.setExpression('left', fixL);
+						if (fixT) s.setExpression('top', fixT);
+					}
+					else if (opts.centerY) {
+						if (full) s.setExpression('top','(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"');
+						s.marginTop = 0;
+					}
+					else if (!opts.centerY && full) {
+						var top = (opts.css && opts.css.top) ? parseInt(opts.css.top, 10) : 0;
+						var expression = '((document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + '+top+') + "px"';
+						s.setExpression('top',expression);
+					}
+				});
+			}
+
+			// show the message
+			if (msg) {
+				if (opts.theme)
+					lyr3.find('.ui-widget-content').append(msg);
+				else
+					lyr3.append(msg);
+				if (msg.jquery || msg.nodeType)
+					$(msg).show();
+			}
+
+			if ((msie || opts.forceIframe) && opts.showOverlay)
+				lyr1.show(); // opacity is zero
+			if (opts.fadeIn) {
+				var cb = opts.onBlock ? opts.onBlock : noOp;
+				var cb1 = (opts.showOverlay && !msg) ? cb : noOp;
+				var cb2 = msg ? cb : noOp;
+				if (opts.showOverlay)
+					lyr2._fadeIn(opts.fadeIn, cb1);
+				if (msg)
+					lyr3._fadeIn(opts.fadeIn, cb2);
+			}
+			else {
+				if (opts.showOverlay)
+					lyr2.show();
+				if (msg)
+					lyr3.show();
+				if (opts.onBlock)
+					opts.onBlock.bind(lyr3)();
+			}
+
+			// bind key and mouse events
+			bind(1, el, opts);
+
+			if (full) {
+				pageBlock = lyr3[0];
+				pageBlockEls = $(opts.focusableElements,pageBlock);
+				if (opts.focusInput)
+					setTimeout(focus, 20);
+			}
+			else
+				center(lyr3[0], opts.centerX, opts.centerY);
+
+			if (opts.timeout) {
+				// auto-unblock
+				var to = setTimeout(function() {
+					if (full)
+						$.unblockUI(opts);
+					else
+						$(el).unblock(opts);
+				}, opts.timeout);
+				$(el).data('blockUI.timeout', to);
+			}
+		}
+
+		// remove the block
+		function remove(el, opts) {
+			var count;
+			var full = (el == window);
+			var $el = $(el);
+			var data = $el.data('blockUI.history');
+			var to = $el.data('blockUI.timeout');
+			if (to) {
+				clearTimeout(to);
+				$el.removeData('blockUI.timeout');
+			}
+			opts = $.extend({}, $.blockUI.defaults, opts || {});
+			bind(0, el, opts); // unbind events
+
+			if (opts.onUnblock === null) {
+				opts.onUnblock = $el.data('blockUI.onUnblock');
+				$el.removeData('blockUI.onUnblock');
+			}
+
+			var els;
+			if (full) // crazy selector to handle odd field errors in ie6/7
+				els = $('body').children().filter('.blockUI').add('body > .blockUI');
+			else
+				els = $el.find('>.blockUI');
+
+			// fix cursor issue
+			if ( opts.cursorReset ) {
+				if ( els.length > 1 )
+					els[1].style.cursor = opts.cursorReset;
+				if ( els.length > 2 )
+					els[2].style.cursor = opts.cursorReset;
+			}
+
+			if (full)
+				pageBlock = pageBlockEls = null;
+
+			if (opts.fadeOut) {
+				count = els.length;
+				els.stop().fadeOut(opts.fadeOut, function() {
+					if ( --count === 0)
+						reset(els,data,opts,el);
+				});
+			}
+			else
+				reset(els, data, opts, el);
+		}
+
+		// move blocking element back into the DOM where it started
+		function reset(els,data,opts,el) {
+			var $el = $(el);
+			if ( $el.data('blockUI.isBlocked') )
+				return;
+
+			els.each(function(i,o) {
+				// remove via DOM calls so we don't lose event handlers
+				if (this.parentNode)
+					this.parentNode.removeChild(this);
+			});
+
+			if (data && data.el) {
+				data.el.style.display = data.display;
+				data.el.style.position = data.position;
+				data.el.style.cursor = 'default'; // #59
+				if (data.parent)
+					data.parent.appendChild(data.el);
+				$el.removeData('blockUI.history');
+			}
+
+			if ($el.data('blockUI.static')) {
+				$el.css('position', 'static'); // #22
+			}
+
+			if (typeof opts.onUnblock == 'function')
+				opts.onUnblock(el,opts);
+
+			// fix issue in Safari 6 where block artifacts remain until reflow
+			var body = $(document.body), w = body.width(), cssW = body[0].style.width;
+			body.width(w-1).width(w);
+			body[0].style.width = cssW;
+		}
+
+		// bind/unbind the handler
+		function bind(b, el, opts) {
+			var full = el == window, $el = $(el);
+
+			// don't bother unbinding if there is nothing to unbind
+			if (!b && (full && !pageBlock || !full && !$el.data('blockUI.isBlocked')))
+				return;
+
+			$el.data('blockUI.isBlocked', b);
+
+			// don't bind events when overlay is not in use or if bindEvents is false
+			if (!full || !opts.bindEvents || (b && !opts.showOverlay))
+				return;
+
+			// bind anchors and inputs for mouse and key events
+			var events = 'mousedown mouseup keydown keypress keyup touchstart touchend touchmove';
+			if (b)
+				$(document).bind(events, opts, handler);
+			else
+				$(document).unbind(events, handler);
+
+		// former impl...
+		//		var $e = $('a,:input');
+		//		b ? $e.bind(events, opts, handler) : $e.unbind(events, handler);
+		}
+
+		// event handler to suppress keyboard/mouse events when blocking
+		function handler(e) {
+			// allow tab navigation (conditionally)
+			if (e.type === 'keydown' && e.keyCode && e.keyCode == 9) {
+				if (pageBlock && e.data.constrainTabKey) {
+					var els = pageBlockEls;
+					var fwd = !e.shiftKey && e.target === els[els.length-1];
+					var back = e.shiftKey && e.target === els[0];
+					if (fwd || back) {
+						setTimeout(function(){focus(back);},10);
+						return false;
+					}
+				}
+			}
+			var opts = e.data;
+			var target = $(e.target);
+			if (target.hasClass('blockOverlay') && opts.onOverlayClick)
+				opts.onOverlayClick(e);
+
+			// allow events within the message content
+			if (target.parents('div.' + opts.blockMsgClass).length > 0)
+				return true;
+
+			// allow events for content that is not being blocked
+			return target.parents().children().filter('div.blockUI').length === 0;
+		}
+
+		function focus(back) {
+			if (!pageBlockEls)
+				return;
+			var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0];
+			if (e)
+				e.focus();
+		}
+
+		function center(el, x, y) {
+			var p = el.parentNode, s = el.style;
+			var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth');
+			var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth');
+			if (x) s.left = l > 0 ? (l+'px') : '0';
+			if (y) s.top  = t > 0 ? (t+'px') : '0';
+		}
+
+		function sz(el, p) {
+			return parseInt($.css(el,p),10)||0;
+		}
+
+	}
+
+
+	/*global define:true */
+	if (typeof define === 'function' && define.amd && define.amd.jQuery) {
+		define(['jquery'], setup);
+	} else {
+		setup(jQuery);
+	}
+
+})();

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/assets/js/script.js
----------------------------------------------------------------------
diff --git a/src/main/resources/assets/js/script.js b/src/main/resources/assets/js/script.js
new file mode 100644
index 0000000..7e88910
--- /dev/null
+++ b/src/main/resources/assets/js/script.js
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Created by Pmuruge on 8/28/2015.
+ */
+$(document).ready(function() {
+    $("#eval-btn").click(function() {
+        execute();
+    });
+    $('#templateAndModelForm textarea, #templateAndModelForm select').keydown(function (e) {
+        if ((e.keyCode == 10 || e.keyCode == 13) && e.ctrlKey) {
+            execute();
+        }
+    });
+    $.blockUI.defaults.fadeIn = 1000;
+    $.blockUI.defaults.fadeOut = 0;
+});
+
+var hasPendingExecuteAjaxCall = false;
+
+function execute() {
+    if (hasPendingExecuteAjaxCall || !checkFormSendable()) {
+        return;
+    }
+    
+    var request = {
+        "template": $("#template").val(),
+        "dataModel": $("#dataModel").val(),
+        "outputFormat": $("#outputFormat").val(),
+        "locale": $("#locale").val(),
+        "timeZone": $("#timeZone").val()
+    }
+
+    $.ajax({
+        method: "POST",
+        url: "/api/execute",
+        data: JSON.stringify(request),
+        headers: { "Content-Type":"application/json" },
+        beforeSend: function (jqXHR, options) {
+            hasPendingExecuteAjaxCall = true;
+            $.blockUI({ message: null });
+            $("#error").hide();
+            return true;
+        }    
+    })
+    .done(function (data) {
+        if (data.problems && data.problems.length != 0) {
+            showResult(data.problems[0].message, true);              
+        } else {
+            showResult(data.result, false);              
+        }
+    })
+    .fail(function (data) {
+        if (data.responseJSON) {
+            showResult(data.responseJSON.errorCode + ": " + data.responseJSON.errorDescription, true);              
+        } else {
+            showResult("The service was unavailable or had returned an invalid response.", true);              
+        }
+    })
+    .always(function (data) {
+        hasPendingExecuteAjaxCall = false;
+        $.unblockUI();
+    });
+}
+
+function checkFormSendable() {
+    if($.trim($("#template").val()) === "" ) {
+        showResult("Template was empty; nothing to do.", true);
+        return false;
+    }
+    return true;
+}
+
+function showResult(result, isError) {
+    if (isError) {
+        $("#result").addClass("error");
+    } else {
+        $("#result").removeClass("error");
+    }
+    $("#result").val(result);
+    $(".resultContainer").show();
+    autosize.update($("#result"));
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/banner.txt
----------------------------------------------------------------------
diff --git a/src/main/resources/banner.txt b/src/main/resources/banner.txt
new file mode 100644
index 0000000..784711d
--- /dev/null
+++ b/src/main/resources/banner.txt
@@ -0,0 +1,10 @@
+
+  ______                                  _                 ____        _ _            
+ |  ____|                                | |               / __ \      | (_)           
+ | |__ _ __ ___  ___ _ __ ___   __ _ _ __| | _____ _ __   | |  | |_ __ | |_ _ __   ___ 
+ |  __| '__/ _ \/ _ \ '_ ` _ \ / _` | '__| |/ / _ \ '__|  | |  | | '_ \| | | '_ \ / _ \
+ | |  | | |  __/  __/ | | | | | (_| | |  |   <  __/ |     | |__| | | | | | | | | |  __/
+ |_|  |_|  \___|\___|_| |_| |_|\__,_|_|  |_|\_\___|_|      \____/|_| |_|_|_|_| |_|\___|
+                                                                                       
+                                                                                       
+

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/freemarker-online.yml
----------------------------------------------------------------------
diff --git a/src/main/resources/freemarker-online.yml b/src/main/resources/freemarker-online.yml
new file mode 100644
index 0000000..370dd91
--- /dev/null
+++ b/src/main/resources/freemarker-online.yml
@@ -0,0 +1,22 @@
+# Spring configuration
+# Application Contexts to Load.
+applicationContext: ['classpath*:/spring/*-context.xml']
+
+logging:
+       # Settings for logging to a file.
+       file:
+            # If true, write log statements to a file.
+            enabled: true
+            threshold: ALL
+            # The file to which current statements will be logged.
+            currentLogFilename: /var/log/freemarker-online/freemarker-online.log
+
+            # When the log file rotates, the archived log will be renamed to this and gzipped. The
+            # %d is replaced with the previous day (yyyy-MM-dd). Custom rolling windows can be created
+            # by passing a SimpleDateFormat-compatible format as an argument: "%d{yyyy-MM-dd-hh}".
+            archivedLogFilenamePattern: /var/log/freemarker-online/freemarker-online-%d.log.gz
+            # The number of archived files to keep.
+            archivedFileCount: 5
+
+            # The timezone used to format dates. HINT: USE THE DEFAULT, UTC.
+            timeZone: UTC

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/spring/bootstrap-context.xml
----------------------------------------------------------------------
diff --git a/src/main/resources/spring/bootstrap-context.xml b/src/main/resources/spring/bootstrap-context.xml
new file mode 100644
index 0000000..2ea0c33
--- /dev/null
+++ b/src/main/resources/spring/bootstrap-context.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
+        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd ">
+
+    <context:component-scan base-package="com.kenshoo"/>
+
+    <context:annotation-config/>
+
+    <!-- Use the system properties (initalized by DW) to configure spring context files -->
+    <bean id="propertyPlaceholderConfigurer"
+          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
+        <property name="ignoreUnresolvablePlaceholders" value="true"/>
+        <property name="ignoreResourceNotFound" value="true"/>
+    </bean>
+
+</beans>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/view/freemarker-online.ftl
----------------------------------------------------------------------
diff --git a/src/main/resources/view/freemarker-online.ftl b/src/main/resources/view/freemarker-online.ftl
new file mode 100644
index 0000000..57746ff
--- /dev/null
+++ b/src/main/resources/view/freemarker-online.ftl
@@ -0,0 +1,129 @@
+<#ftl outputFormat="HTML">
+<#import "utils.ftl" as u>
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="css/main.css">
+    <link rel="stylesheet" href="http://yui.yahooapis.com/pure/0.5.0/pure-min.css">
+    
+    <script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
+    <script src="js/jquery.blockUI.js"></script>
+    <script src="js/autosize.min.js"></script>
+    <script src="js/script.js"></script>
+    <script>
+        $(function() {
+            // Auto-focus on first form input:
+            $('#templateAndModelForm *:input[type!=hidden]:first').focus();
+            
+            // Submit form when Ctrl+Enter is hit in a textarea:            
+
+        
+            // Dynamically adapt text areas heights to their content:
+            //$('#templateAndModelForm textarea').autosize();
+            autosize($('textarea'));
+        
+            // Show/hide data model examples:
+            $("#showHideDataModelExamples").click(function(e) {
+            	 $("#dataModelExamples").toggle();
+           		 $("#hideDataModelExamplesLabel").toggle();
+                 $("#showDataModelExamplesLabel").toggle();
+            	 
+                 e.preventDefault();
+            	 return false;
+            })
+            <#if execute>
+                execute();
+            </#if>
+        });
+    </script>
+    
+    <title>Online FreeMarker Template Tester</title>
+</head>
+<body>
+<div id="layout">
+    <div id="main">
+        <div class="header">
+            <h1>Online FreeMarker Template Tester</h1>
+        </div>
+
+        <div class="content">
+            <!--[if lte IE 8]>
+            <div style="background-color: #C00; color: #fff; padding: 12px 24px;">
+              You seem to use Internet Explorer 8 or older. This page might won't work properly with that.
+            </div>
+            <![endif]-->
+          
+            <form id="templateAndModelForm" method="post" class="pure-form pure-form-stacked">
+                <label for="template">Template <span class="faint">(Apache FreeMarker ${freeMarkerVersion})</span></label>
+                <textarea id="template" name="template" class="pure-input-1 source-code"
+                        placeholder="Enter template, like: Hello ${r'${user}'}!"
+                >${template}</textarea>
+    
+                <label for="template">
+                    Data model
+                    (<a id="showHideDataModelExamples" href="#" tabindex="-1"><!--
+                    --><span id="showDataModelExamplesLabel">show</span><!--
+                    --><span id="hideDataModelExamplesLabel" class="hiddenByDefault">hide</span>
+                    examples</a>)
+                </label>
+                <div id="dataModelExamples" class="hiddenByDefault">
+                  <div class="description">
+                      Note: This syntax is specific to this online service; normally, you just have Java objects as
+                      data-model.
+                  </div>
+                  <pre>someString = Some value
+otherString = "JSON\nsyntax"
+someNumber = 3.14
+someBoolean = true
+someDate = 2014-02-28
+someTime = 20:50:30.5+02:00
+someDatetime = 2014-02-28T18:50Z
+someList = ["JSON", "syntax", 1, 2, 3 ]
+someMap = { "JSON syntax": true, "nestedList": [1, 2, 3] }
+someXML = &lt;example x="1"&gt;text&lt;/example&gt;</pre></div>
+                <textarea id="dataModel" name="dataModel" class="pure-input-1 source-code"
+                        placeholder='Enter one or more assignments (e.g., user = John Doe), starting each in its own line.'
+                >${dataModel}</textarea>
+                <div class="formPanel">
+                  <div class="horizontalBox">
+                    <@u.htmlSelect caption="Output format" name="outputFormat" selectionOptions=outputFormats />
+                  </div>
+                  <div class="horizontalBox">
+                    <@u.htmlSelect caption="Locale" name="locale" selectionOptions=locales />
+                  </div>
+                  <div class="horizontalBox">
+                    <@u.htmlSelect caption="Time zone" name="timeZone" selectionOptions=timeZones />
+                  </div>
+                </div>
+                <div class="formBottomButtonsContainer">
+	                <input id="eval-btn" type="button" value="Evaluate" class="pure-button pure-button-primary"/>
+	                &nbsp; <span class="faint">Ctrl+Enter in input fields will submit this form too</span>
+                </div>
+                <div style="display:none" class="resultContainer">
+                    <label for="result">Result</label>
+                    <textarea id="result" class="pure-input-1 source-code" readonly></textarea>
+                </div>
+
+            </form>
+        </div><!-- content -->
+        
+        <div class="footer">
+            FreeMarker documentation:
+            <a href="http://freemarker.org/docs/" target="_blank">Contents</a>
+            |
+            <a href="http://freemarker.org/docs/dgui_template_overallstructure.html" target="_blank">Overall&nbsp;syntax</a>
+            |
+            <a href="http://freemarker.org/docs/dgui_template_exp.html#exp_cheatsheet" target="_blank">Expression&nbsp;syntax</a>
+            |
+            <a href="http://freemarker.org/docs/ref_directive_alphaidx.html" target="_blank">List&nbsp;of&nbsp;&lt;#<i>directives</i>&gt;</a>
+            |
+            <a href="http://freemarker.org/docs/ref_builtins_alphaidx.html" target="_blank">List&nbsp;of&nbsp;<tt>?<i>built_in</i></tt> functions</a>
+        </div><!-- footer -->
+    </div><!-- main -->
+    
+    <!-- Fork me on GitHub: -->
+    <a href="https://github.com/kenshoo/freemarker-online" target="_blank"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/a6677b08c955af8400f44c6298f40e7d19cc5b2d/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f677261795f3664366436642e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_gray_6d6d6d.png"></a>
+</div><!-- layout -->
+</body>
+</html>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/main/resources/view/utils.ftl
----------------------------------------------------------------------
diff --git a/src/main/resources/view/utils.ftl b/src/main/resources/view/utils.ftl
new file mode 100644
index 0000000..cfa5ee6
--- /dev/null
+++ b/src/main/resources/view/utils.ftl
@@ -0,0 +1,13 @@
+<#ftl outputFormat='HTML'>
+
+<#macro htmlSelect caption name selectionOptions>
+  <div>${caption}:</div>
+  <div> 
+    <select name="${name}" id="${name}" class="pure-input-1">
+      <#list selectionOptions as selectionOption>
+        <#local value = selectionOption.value>
+        <option value="${value}"<#if value == .vars[name]!> selected</#if>>${selectionOption.label}</option>
+      </#list>
+    </select>
+  </div>
+</#macro>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/test/java/com/kenshoo/freemarker/platform/DropWizardServiceTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/com/kenshoo/freemarker/platform/DropWizardServiceTest.java b/src/test/java/com/kenshoo/freemarker/platform/DropWizardServiceTest.java
new file mode 100644
index 0000000..38f7e88
--- /dev/null
+++ b/src/test/java/com/kenshoo/freemarker/platform/DropWizardServiceTest.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.kenshoo.freemarker.platform;
+
+import com.google.common.io.Resources;
+import com.kenshoo.freemarker.dropwizard.ApplicationStartup;
+import com.yammer.dropwizard.testing.junit.DropwizardServiceRule;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.rules.TestRule;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: shlomis
+ * Date: 9/9/13
+ * Time: 10:43 AM
+ */
+public class DropWizardServiceTest {
+    @ClassRule
+    public static TestRule testRule = new DropwizardServiceRule<>(ApplicationStartup.class,
+            Resources.getResource("freemarker-online.yml").getPath());
+
+
+    @Test
+    public void testServerIsUp() throws Exception {
+        ((DropwizardServiceRule) testRule).getService();
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/test/java/com/kenshoo/freemarker/platform/YamlPropertiesPersister.java
----------------------------------------------------------------------
diff --git a/src/test/java/com/kenshoo/freemarker/platform/YamlPropertiesPersister.java b/src/test/java/com/kenshoo/freemarker/platform/YamlPropertiesPersister.java
new file mode 100644
index 0000000..e01a881
--- /dev/null
+++ b/src/test/java/com/kenshoo/freemarker/platform/YamlPropertiesPersister.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.kenshoo.freemarker.platform;
+
+import com.fasterxml.jackson.dataformat.yaml.snakeyaml.Yaml;
+import org.springframework.util.PropertiesPersister;
+import org.springframework.util.StringUtils;
+
+import java.io.*;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: shlomis
+ * Date: 9/8/13
+ * Time: 10:50 PM
+ */
+public class YamlPropertiesPersister implements PropertiesPersister {
+    @Override
+    public void load(Properties props, InputStream is) throws IOException {
+        load(props, new InputStreamReader(is));
+    }
+
+    /**
+     * We want to traverse map representing Yaml object and each time we find String=String pair we want to
+     * save it as Property. As we are going deeper into map we generate compound key as path-like String
+     *
+     * @see org.springframework.util.PropertiesPersister#load(java.util.Properties, java.io.Reader)
+     */
+    @Override
+    public void load(Properties props, Reader reader) throws IOException {
+        Yaml yaml = new Yaml();
+        @SuppressWarnings("unchecked")
+        Map<String, Object> map = (Map<String, Object>) yaml.load(reader);
+        // now we can populate supplied props
+        assignProperties(props, map, null);
+    }
+
+    @SuppressWarnings("unchecked")
+    public void assignProperties(Properties props, Map<String, Object> map, String path) {
+        for (Map.Entry<String, Object> entry : map.entrySet()) {
+            String key = entry.getKey();
+            if (!StringUtils.isEmpty(path))
+                key = path + "." + key;
+            Object val = entry.getValue();
+            if (val instanceof String) {
+                // see if we need to create a compound key
+                props.put(key, val);
+            } else if (val instanceof Map) {
+                assignProperties(props, (Map<String, Object>) val, key);
+            }
+        }
+    }
+
+    @Override
+    public void store(Properties props, OutputStream os, String header) throws IOException {
+        throw new IllegalStateException("Current implementation is a read-only");
+    }
+
+    @Override
+    public void store(Properties props, Writer writer, String header) throws IOException {
+        throw new IllegalStateException("Current implementation is a read-only");
+    }
+
+    @Override
+    public void loadFromXml(Properties props, InputStream is) throws IOException {
+        throw new IllegalStateException("Use DefaultPropertiesPersister if you want to read/write XML");
+    }
+
+    @Override
+    public void storeToXml(Properties props, OutputStream os, String header) throws IOException {
+        throw new IllegalStateException("Use DefaultPropertiesPersister if you want to load/store to XML");
+    }
+
+    @Override
+    public void storeToXml(Properties props, OutputStream os, String header, String encoding) throws IOException {
+        throw new IllegalStateException("Use DefaultPropertiesPersister if you want to read/write XML");
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-freemarker-online-tester/blob/abb26297/src/test/java/com/kenshoo/freemarker/resources/FreeMarkerOnlineExecuteResourceTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/com/kenshoo/freemarker/resources/FreeMarkerOnlineExecuteResourceTest.java b/src/test/java/com/kenshoo/freemarker/resources/FreeMarkerOnlineExecuteResourceTest.java
new file mode 100644
index 0000000..f4886c8
--- /dev/null
+++ b/src/test/java/com/kenshoo/freemarker/resources/FreeMarkerOnlineExecuteResourceTest.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2014 Kenshoo.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.kenshoo.freemarker.resources;
+
+import static org.hamcrest.Matchers.containsString;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.springframework.web.context.ContextLoaderListener;
+import org.springframework.web.context.request.RequestContextListener;
+
+import com.kenshoo.freemarker.model.ExecuteRequest;
+import com.kenshoo.freemarker.model.ExecuteResourceField;
+import com.kenshoo.freemarker.model.ExecuteResourceProblem;
+import com.kenshoo.freemarker.model.ExecuteResponse;
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.spi.spring.container.servlet.SpringServlet;
+import com.sun.jersey.test.framework.AppDescriptor;
+import com.sun.jersey.test.framework.JerseyTest;
+import com.sun.jersey.test.framework.WebAppDescriptor;
+
+/**
+ * Created by Pmuruge on 8/29/2015.
+ */
+public class FreeMarkerOnlineExecuteResourceTest extends JerseyTest {
+    private static final String DATA_MODEL = "user=John";
+    private static final String TEMPLATE_WITH_VARIABLE = "Welcome ${user}";
+    private static final String TEMPLATE_PLAIN = "Welcome John";
+    private static final String MALFORMED_DATA_MODEL = "userJohn";
+    private static final String EXECUTE_API = "api/execute";
+    @Override
+    protected AppDescriptor configure() {
+        return new WebAppDescriptor.Builder("com.kenshoo.freemarker.resources")
+                        .contextPath("/")
+                        .contextListenerClass(ContextLoaderListener.class)
+                        .contextParam("contextConfigLocation", "classpath:spring/bootstrap-context.xml")
+                        .servletClass(SpringServlet.class)
+                        .requestListenerClass(RequestContextListener.class)
+                        .build();
+    }
+
+    @Test
+    public void testSuccessRequest() throws Exception {
+        ExecuteRequest req = new ExecuteRequest(TEMPLATE_WITH_VARIABLE, DATA_MODEL);
+        ClientResponse resp = client().resource(getBaseURI().toString() + EXECUTE_API)
+                .header("Content-Type", "application/json").entity(req).post(ClientResponse.class);
+        assertEquals(200, resp.getStatus());
+        ExecuteResponse response = resp.getEntity(ExecuteResponse.class);
+        assertNull(response.getProblems());
+    }
+
+    @Test
+    public void testMalformedDataModel() throws Exception {
+        ExecuteRequest req = new ExecuteRequest(TEMPLATE_PLAIN, MALFORMED_DATA_MODEL);
+        ClientResponse resp = client().resource(getBaseURI().toString() + EXECUTE_API)
+                .header("Content-Type", "application/json").entity(req).post(ClientResponse.class);
+        assertEquals(200, resp.getStatus());
+        ExecuteResponse response = resp.getEntity(ExecuteResponse.class);
+        assertNotNull(response.getProblems());
+        assertTrue(containsProblem(response, ExecuteResourceField.DATA_MODEL));
+    }
+
+    @Test
+    public void testLongDataModel() throws Exception {
+        ExecuteRequest req = new ExecuteRequest(TEMPLATE_PLAIN, create30KString());
+        ClientResponse resp = client().resource(getBaseURI().toString() + EXECUTE_API)
+                .header("Content-Type", "application/json").entity(req).post(ClientResponse.class);
+        assertEquals(200, resp.getStatus());
+        ExecuteResponse response = resp.getEntity(ExecuteResponse.class);
+        assertNotNull(response.getProblems());
+        assertTrue(containsProblem(response, ExecuteResourceField.DATA_MODEL));
+        String problemMessage = getProblemMessage(response, ExecuteResourceField.DATA_MODEL);
+        assertThat(problemMessage, containsString("data model"));
+        assertThat(problemMessage, containsString("limit"));
+    }
+
+    @Test
+    public void testLongTemplate() throws Exception {
+        ExecuteRequest req = new ExecuteRequest(create30KString(), DATA_MODEL);
+        ClientResponse resp = client().resource(getBaseURI().toString() + EXECUTE_API)
+                .header("Content-Type", "application/json").entity(req).post(ClientResponse.class);
+        assertEquals(200, resp.getStatus());
+        ExecuteResponse response = resp.getEntity(ExecuteResponse.class);
+        assertNotNull(response.getProblems());
+        assertTrue(containsProblem(response, ExecuteResourceField.TEMPLATE));
+        String problemMessage = getProblemMessage(response, ExecuteResourceField.TEMPLATE);
+        assertThat(problemMessage, containsString("template"));
+        assertThat(problemMessage, containsString("limit"));
+    }
+
+    @Test
+    public void testMultipleErrorsDataModel() throws Exception {
+        ExecuteRequest req = new ExecuteRequest(create30KString(), create30KString());
+        req.setOutputFormat("wrongOutputFormat");
+        req.setLocale("wrongLocale");
+        req.setTimeZone("wrongTimeZone");
+        
+        ClientResponse resp = client().resource(getBaseURI() + EXECUTE_API)
+                .header("Content-Type", "application/json").entity(req).post(ClientResponse.class);
+        
+        assertEquals(200, resp.getStatus());
+        ExecuteResponse response = resp.getEntity(ExecuteResponse.class);
+        assertNotNull(response.getProblems());
+        assertThat(getProblemMessage(response, ExecuteResourceField.TEMPLATE), containsString("limit"));
+        assertThat(getProblemMessage(response, ExecuteResourceField.DATA_MODEL), containsString("limit"));
+        assertThat(getProblemMessage(response, ExecuteResourceField.OUTPUT_FORMAT), containsString("wrongOutputFormat"));
+        assertThat(getProblemMessage(response, ExecuteResourceField.LOCALE), containsString("wrongLocale"));
+        assertThat(getProblemMessage(response, ExecuteResourceField.TIME_ZONE), containsString("wrongTimeZone"));
+    }
+    
+    private String create30KString() {
+        final String veryLongString;
+        {
+            StringBuilder sb = new StringBuilder();
+            for (int i = 0; i < 30000 / 10; i++) {
+                sb.append("0123456789");
+            }
+            veryLongString = sb.toString();
+        }
+        return veryLongString;
+    }
+
+    private boolean containsProblem(ExecuteResponse response, ExecuteResourceField field) {
+        for (ExecuteResourceProblem problem : response.getProblems()) {
+            if (problem.getField() == field) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private String getProblemMessage(ExecuteResponse response, ExecuteResourceField field) {
+        for (ExecuteResourceProblem problem : response.getProblems()) {
+            if (problem.getField() == field) {
+                return problem.getMessage();
+            }
+        }
+        return null;
+    }
+    
+}



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