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From d...@apache.org
Subject [2/2] git commit: updated refs/heads/4.4 to a28d7a4
Date Wed, 26 Mar 2014 13:58:34 GMT
Revert "cloudstack api post and ssl fix"

This reverts commit d5333f4596460c7123b66ad5c19fc69442696ea2.


Project: http://git-wip-us.apache.org/repos/asf/cloudstack/repo
Commit: http://git-wip-us.apache.org/repos/asf/cloudstack/commit/a28d7a4d
Tree: http://git-wip-us.apache.org/repos/asf/cloudstack/tree/a28d7a4d
Diff: http://git-wip-us.apache.org/repos/asf/cloudstack/diff/a28d7a4d

Branch: refs/heads/4.4
Commit: a28d7a4d5fe05800c70097bd26ff6c1707f483e0
Parents: 754cce4
Author: Daan Hoogland <daan@onecht.net>
Authored: Wed Mar 26 14:57:50 2014 +0100
Committer: Daan Hoogland <daan@onecht.net>
Committed: Wed Mar 26 14:57:50 2014 +0100

----------------------------------------------------------------------
 .../src/com/cloud/bridge/util/JsonAccessor.java | 248 +++++++++++++++++++
 .../com/cloud/bridge/util/JsonElementUtil.java  |  45 ----
 .../cloud/stack/CloudStackClientException.java  |  21 --
 .../src/com/cloud/stack/CloudStackCommand.java  | 149 +++++++++++
 .../com/cloud/stack/CloudStackQueryBuilder.java | 118 ---------
 .../cloud/gate/util/JsonAccessorTestCase.java   |  69 ++++++
 .../gate/util/JsonElementUtilTestCase.java      |  48 ----
 7 files changed, 466 insertions(+), 232 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/cloudstack/blob/a28d7a4d/awsapi/src/com/cloud/bridge/util/JsonAccessor.java
----------------------------------------------------------------------
diff --git a/awsapi/src/com/cloud/bridge/util/JsonAccessor.java b/awsapi/src/com/cloud/bridge/util/JsonAccessor.java
new file mode 100644
index 0000000..2a94dea
--- /dev/null
+++ b/awsapi/src/com/cloud/bridge/util/JsonAccessor.java
@@ -0,0 +1,248 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.cloud.bridge.util;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.util.ArrayList;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonPrimitive;
+
+import com.cloud.bridge.service.exception.InternalErrorException;
+
+/**
+ * JsonAccessor provides the functionality to allow navigating JSON object graph using simple
expressions,
+ * for example, following property access expressions are all valid ones
+ *
+ *         rootobj.level1obj[1].property
+ *         this[0].level1obj[1].property
+ *
+ */
+public class JsonAccessor {
+    private JsonElement _json;
+
+    Pattern _arrayAccessorMatcher = Pattern.compile("(.*)\\[(\\d+)\\]");
+
+    public JsonAccessor(JsonElement json) {
+        assert (json != null);
+        _json = json;
+    }
+
+    public BigDecimal getAsBigDecimal(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsBigDecimal();
+    }
+
+    public BigInteger getAsBigInteger(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsBigInteger();
+    }
+
+    public boolean getAsBoolean(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsBoolean();
+    }
+
+    public byte getAsByte(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsByte();
+    }
+
+    public char getAsCharacter(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsCharacter();
+    }
+
+    public double getAsDouble(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsDouble();
+    }
+
+    public float getAsFloat(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsFloat();
+    }
+
+    public int getAsInt(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsInt();
+    }
+
+    public long getAsLong(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsLong();
+    }
+
+    public Number getAsNumber(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsNumber();
+    }
+
+    public short getAsShort(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsShort();
+    }
+
+    public String getAsString(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        return jsonElement.getAsString();
+    }
+
+    public boolean isBoolean(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+        if (jsonElement instanceof JsonPrimitive)
+            return ((JsonPrimitive)jsonElement).isBoolean();
+
+        return false;
+    }
+
+    public boolean isNumber(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+
+        if (jsonElement instanceof JsonPrimitive)
+            return ((JsonPrimitive)jsonElement).isNumber();
+        return false;
+    }
+
+    public boolean isString(String propPath) {
+        JsonElement jsonElement = eval(propPath);
+
+        if (jsonElement instanceof JsonPrimitive)
+            return ((JsonPrimitive)jsonElement).isString();
+        return false;
+    }
+
+    /*
+     * Return
+     *         -1    :    property expression can not be resolved
+     *         0    :    match to a null JSON object
+     *         1+    :    matched, for array element, the count of the elements inside the
array
+     */
+    public int getMatchCount(String propPath) {
+        JsonElement jsonElement = tryEval(propPath);
+        if (jsonElement == null)
+            return -1;
+
+        if (jsonElement.isJsonNull())
+            return 0;
+
+        if (jsonElement.isJsonArray())
+            return ((JsonArray)jsonElement).size();
+
+        return 1;
+    }
+
+    public JsonElement eval(String propPath) {
+        JsonElement jsonElement = tryEval(propPath);
+        if (jsonElement == null)
+            throw new InternalErrorException("Property " + propPath + " is resolved to null
JSON element on object: " + _json.toString());
+
+        return jsonElement;
+    }
+
+    public JsonElement tryEval(String propPath) {
+        assert (propPath != null);
+        String[] tokens = propPath.split("\\.");
+
+        ArrayList<Resolver> resolverChain = new ArrayList<Resolver>();
+        for (String token : tokens) {
+            Matcher matcher = _arrayAccessorMatcher.matcher(token);
+            if (matcher.find()) {
+                String propStr = matcher.group(1);
+                String indexStr = matcher.group(2);
+
+                resolverChain.add(new ArrayPropertyResolver(propStr, Integer.parseInt(indexStr)));
+            } else {
+                resolverChain.add(new PropertyResolver(token));
+            }
+        }
+
+        JsonElement jsonElementToResolveAt = _json;
+        for (Resolver resolver : resolverChain) {
+            jsonElementToResolveAt = resolver.resolve(jsonElementToResolveAt);
+
+            if (jsonElementToResolveAt == null)
+                break;
+        }
+
+        return jsonElementToResolveAt;
+    }
+
+    //
+    // Property resolvers
+    //
+    private static interface Resolver {
+        public JsonElement resolve(JsonElement jsonElementToResolveAt);
+    }
+
+    private static class PropertyResolver implements Resolver {
+        protected String _propName;
+
+        public PropertyResolver(String propName) {
+            _propName = propName;
+        }
+
+        public JsonElement resolve(JsonElement jsonElementToResolveAt) {
+            if ("this".equals(_propName))
+                return jsonElementToResolveAt;
+
+            if (jsonElementToResolveAt.isJsonObject())
+                return ((JsonObject)jsonElementToResolveAt).get(_propName);
+
+            if (jsonElementToResolveAt.isJsonNull())
+                throw new NullPointerException(String.format("Property %s points to a null
element on object: %s", _propName, jsonElementToResolveAt.toString()));
+
+            throw new InternalErrorException("Unable to evaluate JSON accessor property:
" + _propName + ", on object: " + jsonElementToResolveAt.toString());
+        }
+    }
+
+    private static class ArrayPropertyResolver extends PropertyResolver {
+        protected int _index;
+
+        public ArrayPropertyResolver(String propName, int index) {
+            super(propName);
+            _index = index;
+        }
+
+        public JsonElement resolve(JsonElement jsonElementToResolveAt) {
+            if (!"this".equals(_propName)) {
+                if (jsonElementToResolveAt.isJsonObject()) {
+                    jsonElementToResolveAt = ((JsonObject)jsonElementToResolveAt).get(_propName);
+                } else {
+                    if (jsonElementToResolveAt.isJsonNull())
+                        throw new NullPointerException(String.format("Property %s points
to a null element on object: %s", _propName, jsonElementToResolveAt.toString()));
+
+                    throw new InternalErrorException("Unable to evaluate JSON accessor property:
" + _propName + ", on object: " + jsonElementToResolveAt.toString());
+                }
+            }
+
+            if (jsonElementToResolveAt instanceof JsonArray) {
+                return ((JsonArray)jsonElementToResolveAt).get(_index);
+            }
+
+            if (jsonElementToResolveAt.isJsonNull())
+                throw new NullPointerException(String.format("Property %s points to a null
element on object: %s", _propName, jsonElementToResolveAt.toString()));
+
+            throw new InternalErrorException("Unable to evaluate JSON accessor property:
" + _propName + ", on object: " + jsonElementToResolveAt.toString());
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/cloudstack/blob/a28d7a4d/awsapi/src/com/cloud/bridge/util/JsonElementUtil.java
----------------------------------------------------------------------
diff --git a/awsapi/src/com/cloud/bridge/util/JsonElementUtil.java b/awsapi/src/com/cloud/bridge/util/JsonElementUtil.java
deleted file mode 100644
index 2d8afb5..0000000
--- a/awsapi/src/com/cloud/bridge/util/JsonElementUtil.java
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.cloud.bridge.util;
-
-import com.google.gson.JsonElement;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonPrimitive;
-
-/**
- * @author Dmitry Batkovich
- *
- * For more complex cases (JsonArrays or other) it can be rewrite to matcher pattern
- */
-public final class JsonElementUtil {
-
-    private JsonElementUtil() {}
-
-    public static JsonElement getAsJsonElement(final JsonElement jsonElement, final String...
path) {
-        JsonElement currentElement = jsonElement;
-        for (final String propertyName : path) {
-            if (currentElement == null) {
-                return null;
-            }
-            if (jsonElement.isJsonObject()) {
-                currentElement = ((JsonObject) currentElement).get(propertyName);
-            } else {
-                return null;
-            }
-        }
-        return currentElement;
-    }
-
-    public static Integer getAsInt(final JsonElement jsonElement, final String... path) {
-        final JsonElement targetElement = getAsJsonElement(jsonElement, path);
-        if (targetElement == null || !targetElement.isJsonPrimitive()) {
-            return null;
-        }
-        final JsonPrimitive asPrimitive = (JsonPrimitive) targetElement;
-        return asPrimitive.getAsInt();
-    }
-
-    public static String getAsString(final JsonElement jsonElement, final String... path)
{
-        final JsonElement targetElement = getAsJsonElement(jsonElement, path);
-        return targetElement == null ? null : targetElement.getAsString();
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/cloudstack/blob/a28d7a4d/awsapi/src/com/cloud/stack/CloudStackClientException.java
----------------------------------------------------------------------
diff --git a/awsapi/src/com/cloud/stack/CloudStackClientException.java b/awsapi/src/com/cloud/stack/CloudStackClientException.java
deleted file mode 100644
index ac1b3ef..0000000
--- a/awsapi/src/com/cloud/stack/CloudStackClientException.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.cloud.stack;
-
-/**
- * @author Dmitry Batkovich
- */
-public class CloudStackClientException extends Exception {
-    public CloudStackClientException() {
-    }
-
-    public CloudStackClientException(final String s) {
-        super(s);
-    }
-
-    public CloudStackClientException(final String s, final Throwable throwable) {
-        super(s, throwable);
-    }
-
-    public CloudStackClientException(final Throwable throwable) {
-        super(throwable);
-    }
-}

http://git-wip-us.apache.org/repos/asf/cloudstack/blob/a28d7a4d/awsapi/src/com/cloud/stack/CloudStackCommand.java
----------------------------------------------------------------------
diff --git a/awsapi/src/com/cloud/stack/CloudStackCommand.java b/awsapi/src/com/cloud/stack/CloudStackCommand.java
new file mode 100644
index 0000000..8d6aa68
--- /dev/null
+++ b/awsapi/src/com/cloud/stack/CloudStackCommand.java
@@ -0,0 +1,149 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.cloud.stack;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.security.SignatureException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+
+import org.apache.commons.codec.binary.Base64;
+
+/**
+ * CloudStackCommand wraps command properties that are being sent to CloudStack
+ *
+ */
+public class CloudStackCommand {
+    Map<String, String> _params = new HashMap<String, String>();
+
+    public CloudStackCommand(String cmdName) {
+        this(cmdName, "json");
+    }
+
+    public CloudStackCommand(String cmdName, String responseType) {
+        _params.put("command", cmdName);
+        if (responseType != null)
+            _params.put("response", responseType);
+    }
+
+    public CloudStackCommand setParam(String paramName, String paramValue) {
+        assert (paramName != null);
+        assert (paramValue != null);
+
+        _params.put(paramName, paramValue);
+        return this;
+    }
+
+    public String signCommand(String apiKey, String secretKey) throws SignatureException
{
+        assert (_params.get("command") != null);
+
+        List<String> paramNames = new ArrayList<String>();
+        for (String paramName : _params.keySet())
+            paramNames.add(paramName);
+
+        paramNames.add("apikey");
+        Collections.sort(paramNames);
+
+        StringBuffer sb = new StringBuffer();
+        for (String name : paramNames) {
+            String value;
+            if ("apikey".equals(name))
+                value = apiKey;
+            else
+                value = _params.get(name);
+
+            assert (value != null);
+
+            value = urlSafe(value);
+
+            if (sb.length() == 0) {
+                sb.append(name).append("=").append(value);
+            } else {
+                sb.append("&").append(name).append("=").append(value);
+            }
+        }
+
+        String signature = calculateRFC2104HMAC(sb.toString().toLowerCase(), secretKey);
+        return composeQueryString(apiKey, signature);
+    }
+
+    private String composeQueryString(String apiKey, String signature) {
+        StringBuffer sb = new StringBuffer();
+        String name;
+        String value;
+
+        // treat command specially (although not really necessary )
+        name = "command";
+        value = _params.get(name);
+        if (value != null) {
+            value = urlSafe(value);
+            sb.append(name).append("=").append(value);
+        }
+
+        for (Map.Entry<String, String> entry : _params.entrySet()) {
+            name = entry.getKey();
+
+            if (!"command".equals(name)) {
+                value = urlSafe(entry.getValue());
+
+                if (sb.length() == 0)
+                    sb.append(name).append("=").append(value);
+                else
+                    sb.append("&").append(name).append("=").append(value);
+            }
+        }
+
+        sb.append("&apikey=").append(urlSafe(apiKey));
+        sb.append("&signature=").append(urlSafe(signature));
+
+        return sb.toString();
+    }
+
+    private String calculateRFC2104HMAC(String signIt, String secretKey) throws SignatureException
{
+        String result = null;
+        try {
+            SecretKeySpec key = new SecretKeySpec(secretKey.getBytes(), "HmacSHA1");
+            Mac hmacSha1 = Mac.getInstance("HmacSHA1");
+            hmacSha1.init(key);
+            byte[] rawHmac = hmacSha1.doFinal(signIt.getBytes());
+            result = new String(Base64.encodeBase64(rawHmac));
+        } catch (Exception e) {
+            throw new SignatureException("Failed to generate keyed HMAC on soap request:
" + e.getMessage());
+        }
+        return result.trim();
+    }
+
+    private String urlSafe(String value) {
+        try {
+            if (value != null)
+                return URLEncoder.encode(value, "UTF-8").replaceAll("\\+", "%20");
+            else
+                return null;
+        } catch (UnsupportedEncodingException e) {
+            assert (false);
+        }
+
+        return value;
+    }
+}

http://git-wip-us.apache.org/repos/asf/cloudstack/blob/a28d7a4d/awsapi/src/com/cloud/stack/CloudStackQueryBuilder.java
----------------------------------------------------------------------
diff --git a/awsapi/src/com/cloud/stack/CloudStackQueryBuilder.java b/awsapi/src/com/cloud/stack/CloudStackQueryBuilder.java
deleted file mode 100644
index a7aff68..0000000
--- a/awsapi/src/com/cloud/stack/CloudStackQueryBuilder.java
+++ /dev/null
@@ -1,118 +0,0 @@
-// Licensed to the Apache Software Foundation (ASF) under one
-// or more contributor license agreements.  See the NOTICE file
-// distributed with this work for additional information
-// regarding copyright ownership.  The ASF licenses this file
-// to you 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.cloud.stack;
-
-import java.io.UnsupportedEncodingException;
-import java.net.URLEncoder;
-import java.security.SignatureException;
-import java.util.*;
-
-import javax.crypto.Mac;
-import javax.crypto.spec.SecretKeySpec;
-
-import com.cloud.utils.StringUtils;
-import org.apache.commons.codec.binary.Base64;
-import org.apache.commons.httpclient.HttpMethod;
-import org.apache.commons.httpclient.NameValuePair;
-import org.apache.commons.httpclient.URI;
-import org.apache.commons.httpclient.URIException;
-import org.apache.commons.httpclient.methods.GetMethod;
-import org.apache.commons.httpclient.methods.PostMethod;
-
-/**
- * CloudStackQueryBuilder wraps command properties that are being sent to CloudStack
- */
-public class CloudStackQueryBuilder {
-    private static final String HMAC_SHA_1 = "HmacSHA1";
-    private static final String COMMAND_KEY = "command";
-    private static final String APIKEY_KEY = "apikey";
-
-    private final Collection<NameValuePair> params = new ArrayList<NameValuePair>();
-
-    public CloudStackQueryBuilder(final String commandName) {
-        params.add(new NameValuePair("command", commandName));
-        params.add(new NameValuePair("response", "json"));
-    }
-
-    public static CloudStackQueryBuilder create(final String commandName) {
-        return new CloudStackQueryBuilder(commandName);
-    }
-
-    /**
-     * parameter will be stored to query only if paramValue != null. This assumption is very
useful
-     * for optional parameters
-     * @param paramName - not null parameter name
-     * @param paramValue - nullable parameter value
-     */
-    public CloudStackQueryBuilder addParam(final String paramName, final Object paramValue)
{
-        if (paramName == null) {
-            throw new NullPointerException();
-        }
-        if (paramValue != null) {
-            params.add(new NameValuePair(paramName, String.valueOf(paramValue)));
-        }
-        return this;
-    }
-
-    public HttpMethod buildRequest(final String apiKey, final String secretKey) throws SignatureException
{
-        final PostMethod postMethod = new PostMethod();
-        for (final NameValuePair param : params) {
-            postMethod.addParameter(param);
-        }
-        postMethod.addParameter(APIKEY_KEY, apiKey);
-        postMethod.addParameter("signature", calculateSignature(secretKey, apiKey));
-        return postMethod;
-    }
-
-    private String calculateSignature(final String secretKey, final String apiKey) throws
SignatureException {
-        final List<NameValuePair> paramsCopy = new ArrayList<NameValuePair>(params.size()
+ 1);
-        paramsCopy.addAll(params);
-        paramsCopy.add(new NameValuePair(APIKEY_KEY, urlSafe(apiKey)));
-        Collections.sort(paramsCopy, new Comparator<NameValuePair>() {
-            @Override
-            public int compare(final NameValuePair nameValuePair, final NameValuePair nameValuePair2)
{
-                return nameValuePair.getName().compareTo(nameValuePair2.getName());
-            }
-        });
-
-        final List<String> serializedParameters = new ArrayList<String>(paramsCopy.size());
-        for (final NameValuePair pair : paramsCopy) {
-            serializedParameters.add(pair.getName() + "=" + urlSafe(pair.getValue()));
-        }
-        final String toSign = StringUtils.join(serializedParameters, "&").toLowerCase();
-        return calculateRFC2104HMAC(toSign, secretKey);
-    }
-
-    private static String calculateRFC2104HMAC(final String signIt, final String secretKey)
throws SignatureException {
-        try {
-            final Mac hmacSha1 = Mac.getInstance(HMAC_SHA_1);
-            hmacSha1.init(new SecretKeySpec(secretKey.getBytes(), HMAC_SHA_1));
-            final byte[] rawHmac = hmacSha1.doFinal(signIt.getBytes());
-            return new String(Base64.encodeBase64(rawHmac)).trim();
-        } catch (final Exception e) {
-            throw new SignatureException("Failed to generate keyed HMAC on soap request:
" + e.getMessage());
-        }
-    }
-
-    private static String urlSafe(final String value) {
-        try {
-            return value == null ? null : URLEncoder.encode(value, "UTF-8").replaceAll("\\+",
"%20");
-        } catch (final UnsupportedEncodingException e) {
-            throw new RuntimeException(e);
-        }
-    }
-}

http://git-wip-us.apache.org/repos/asf/cloudstack/blob/a28d7a4d/awsapi/test/com/cloud/gate/util/JsonAccessorTestCase.java
----------------------------------------------------------------------
diff --git a/awsapi/test/com/cloud/gate/util/JsonAccessorTestCase.java b/awsapi/test/com/cloud/gate/util/JsonAccessorTestCase.java
new file mode 100644
index 0000000..8603e59
--- /dev/null
+++ b/awsapi/test/com/cloud/gate/util/JsonAccessorTestCase.java
@@ -0,0 +1,69 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.cloud.gate.util;
+
+import junit.framework.Assert;
+
+import org.apache.log4j.Logger;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParser;
+
+import com.cloud.bridge.util.JsonAccessor;
+import com.cloud.gate.testcase.BaseTestCase;
+import com.cloud.stack.models.CloudStackSnapshot;
+
+public class JsonAccessorTestCase extends BaseTestCase {
+    protected final static Logger logger = Logger.getLogger(UtilTestCase.class);
+
+    public void testJsonAccessor() {
+        JsonParser parser = new JsonParser();
+        JsonElement json = parser.parse("{firstName: 'Kelven', lastName: 'Yang', arrayObj:
[{name: 'elem1'}, {name: 'elem2'}]}");
+        JsonAccessor jsonAccessor = new JsonAccessor(json);
+
+        Assert.assertTrue("Kelven".equals(jsonAccessor.getAsString("firstName")));
+        Assert.assertTrue("Kelven".equals(jsonAccessor.getAsString("this.firstName")));
+        Assert.assertTrue("Yang".equals(jsonAccessor.getAsString("lastName")));
+        Assert.assertTrue("Yang".equals(jsonAccessor.getAsString("this.lastName")));
+
+        Assert.assertTrue("elem1".equals(jsonAccessor.getAsString("arrayObj[0].name")));
+        Assert.assertTrue("elem2".equals(jsonAccessor.getAsString("arrayObj[1].name")));
+
+        Assert.assertTrue("elem1".equals(jsonAccessor.getAsString("this.arrayObj.this[0].name")));
+        Assert.assertTrue("elem2".equals(jsonAccessor.getAsString("this.arrayObj.this[1].name")));
+
+        Assert.assertTrue(jsonAccessor.getMatchCount("firstName") == 1);
+        Assert.assertTrue(jsonAccessor.getMatchCount("middleName") == -1);
+        Assert.assertTrue(jsonAccessor.getMatchCount("arrayObj") == 2);
+        Assert.assertTrue(jsonAccessor.getMatchCount("arrayObj[0]") == 1);
+    }
+
+    public void testGson() {
+        String response =
+            "{ \"queryasyncjobresultresponse\" : {\"jobid\":5868,\"jobstatus\":1,\"jobprocstatus\":0,\"jobresultcode\":0,\"jobresulttype\":\"object\",\"jobresult\":{\"snapshot\":{\"id\":3161,\"account\":\"admin\",\"domainid\":1,\"domain\":\"ROOT\",\"snapshottype\":\"MANUAL\",\"volumeid\":186928,\"volumename\":\"KY-DATA-VOL\",\"volumetype\":\"DATADISK\",\"created\":\"2011-06-02T05:05:41-0700\",\"name\":\"i-2-246446-VM_KY-DATA-VOL_20110602120541\",\"intervaltype\":\"MANUAL\",\"state\":\"BackedUp\"}}}}";
+
+        JsonParser parser = new JsonParser();
+        JsonElement json = parser.parse(response);
+        JsonAccessor jsonAccessor = new JsonAccessor(json);
+
+        Gson gson = new Gson();
+        CloudStackSnapshot snapshot = gson.fromJson(jsonAccessor.eval("queryasyncjobresultresponse.jobresult.snapshot"),
CloudStackSnapshot.class);
+
+        Assert.assertTrue("BackedUp".equals(snapshot.getState()));
+    }
+}

http://git-wip-us.apache.org/repos/asf/cloudstack/blob/a28d7a4d/awsapi/test/com/cloud/gate/util/JsonElementUtilTestCase.java
----------------------------------------------------------------------
diff --git a/awsapi/test/com/cloud/gate/util/JsonElementUtilTestCase.java b/awsapi/test/com/cloud/gate/util/JsonElementUtilTestCase.java
deleted file mode 100644
index 8b4f267..0000000
--- a/awsapi/test/com/cloud/gate/util/JsonElementUtilTestCase.java
+++ /dev/null
@@ -1,48 +0,0 @@
-// Licensed to the Apache Software Foundation (ASF) under one
-// or more contributor license agreements.  See the NOTICE file
-// distributed with this work for additional information
-// regarding copyright ownership.  The ASF licenses this file
-// to you 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.cloud.gate.util;
-
-import com.cloud.bridge.util.JsonElementUtil;
-import com.google.gson.JsonArray;
-import junit.framework.Assert;
-
-import com.cloud.gate.testcase.BaseTestCase;
-import com.cloud.stack.models.CloudStackSnapshot;
-import com.google.gson.Gson;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonParser;
-
-public class JsonElementUtilTestCase extends BaseTestCase {
-    private final static JsonParser JSON_PARSER = new JsonParser();
-
-    public void testJsonElementUtils() {
-    	JsonElement json = JSON_PARSER.parse("{firstName: 'Kelven', lastName: 'Yang', arrayObj:
[{name: 'elem1'}, {name: 'elem2'}], level1: {level2: 'some'}}");
-
-        assertEquals("Kelven", JsonElementUtil.getAsString(json, "firstName"));
-        assertEquals("Yang", JsonElementUtil.getAsString(json, "lastName"));
-        assertEquals("some", JsonElementUtil.getAsString(json, "level1", "level2"));
-        assertTrue(JsonElementUtil.getAsJsonElement(json, "arrayObj") instanceof JsonArray);
-    }
-    
-    public void testGson() {
-    	String response = "{ \"queryasyncjobresultresponse\" : {\"jobid\":5868,\"jobstatus\":1,\"jobprocstatus\":0,\"jobresultcode\":0,\"jobresulttype\":\"object\",\"jobresult\":{\"snapshot\":{\"id\":3161,\"account\":\"admin\",\"domainid\":1,\"domain\":\"ROOT\",\"snapshottype\":\"MANUAL\",\"volumeid\":186928,\"volumename\":\"KY-DATA-VOL\",\"volumetype\":\"DATADISK\",\"created\":\"2011-06-02T05:05:41-0700\",\"name\":\"i-2-246446-VM_KY-DATA-VOL_20110602120541\",\"intervaltype\":\"MANUAL\",\"state\":\"BackedUp\"}}}}";
-    	JsonElement json = JSON_PARSER.parse(response);
-    	Gson gson = new Gson();
-    	CloudStackSnapshot snapshot = gson.fromJson(JsonElementUtil.getAsJsonElement(json, "queryasyncjobresultresponse",
"jobresult", "snapshot"), CloudStackSnapshot.class);
-    	Assert.assertTrue("BackedUp".equals(snapshot.getState()));
-    }
-}


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