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From ad...@apache.org
Subject [8/17] git commit: initial commit of core plugin, that has the mr nature
Date Mon, 28 Jan 2013 03:44:44 GMT
initial commit of core plugin, that has the mr nature

Project: http://git-wip-us.apache.org/repos/asf/incubator-hdt/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-hdt/commit/c8651b88
Tree: http://git-wip-us.apache.org/repos/asf/incubator-hdt/tree/c8651b88
Diff: http://git-wip-us.apache.org/repos/asf/incubator-hdt/diff/c8651b88

Branch: refs/heads/master
Commit: c8651b88a1fd8a56f8a2ba173ff12fc79e5f3c1d
Parents: a6fdb92
Author: adamb <adamb@apache.org>
Authored: Wed Jan 23 11:21:15 2013 -0600
Committer: adamb <adamb@apache.org>
Committed: Wed Jan 23 11:21:15 2013 -0600

----------------------------------------------------------------------
 org.apache.hdt.core/.classpath                     |    7 +
 org.apache.hdt.core/.gitignore                     |    1 +
 org.apache.hdt.core/.project                       |   28 +++
 .../.settings/org.eclipse.jdt.core.prefs           |    7 +
 org.apache.hdt.core/META-INF/MANIFEST.MF           |   12 ++
 org.apache.hdt.core/build.properties               |    5 +
 org.apache.hdt.core/plugin.xml                     |   15 ++
 .../src/org/apache/hdt/core/Activator.java         |   31 +++
 .../apache/hdt/core/natures/MapReduceNature.java   |  151 +++++++++++++++
 9 files changed, 257 insertions(+), 0 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/.classpath
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/.classpath b/org.apache.hdt.core/.classpath
new file mode 100644
index 0000000..ad32c83
--- /dev/null
+++ b/org.apache.hdt.core/.classpath
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/.gitignore
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/.gitignore b/org.apache.hdt.core/.gitignore
new file mode 100644
index 0000000..5e56e04
--- /dev/null
+++ b/org.apache.hdt.core/.gitignore
@@ -0,0 +1 @@
+/bin

http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/.project
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/.project b/org.apache.hdt.core/.project
new file mode 100644
index 0000000..bb03cc0
--- /dev/null
+++ b/org.apache.hdt.core/.project
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>org.apache.hdt.core</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/.settings/org.eclipse.jdt.core.prefs
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/.settings/org.eclipse.jdt.core.prefs b/org.apache.hdt.core/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000..c537b63
--- /dev/null
+++ b/org.apache.hdt.core/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,7 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.6

http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/META-INF/MANIFEST.MF
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/META-INF/MANIFEST.MF b/org.apache.hdt.core/META-INF/MANIFEST.MF
new file mode 100644
index 0000000..de9d579
--- /dev/null
+++ b/org.apache.hdt.core/META-INF/MANIFEST.MF
@@ -0,0 +1,12 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: Hadoop Development Tools Core
+Bundle-SymbolicName: org.apache.hdt.core;singleton:=true
+Bundle-Version: 0.0.0
+Bundle-Activator: org.apache.hdt.core.Activator
+Bundle-Vendor: Apache Software Foundation
+Require-Bundle: org.eclipse.core.runtime,
+ org.eclipse.core.resources,
+ org.eclipse.jdt.core
+Bundle-RequiredExecutionEnvironment: JavaSE-1.6
+Bundle-ActivationPolicy: lazy

http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/build.properties
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/build.properties b/org.apache.hdt.core/build.properties
new file mode 100644
index 0000000..e9863e2
--- /dev/null
+++ b/org.apache.hdt.core/build.properties
@@ -0,0 +1,5 @@
+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .,\
+               plugin.xml

http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/plugin.xml
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/plugin.xml b/org.apache.hdt.core/plugin.xml
new file mode 100644
index 0000000..fbed8c5
--- /dev/null
+++ b/org.apache.hdt.core/plugin.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?eclipse version="3.4"?>
+<plugin>
+   <extension
+         id="org.apache.hdt.mrnature"
+         name="MapReduce Nature"
+         point="org.eclipse.core.resources.natures">
+      <runtime>
+         <run
+               class="org.apache.hdt.core.natures.MapReduceNature">
+         </run>
+      </runtime>
+   </extension>
+
+</plugin>

http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/src/org/apache/hdt/core/Activator.java
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/src/org/apache/hdt/core/Activator.java b/org.apache.hdt.core/src/org/apache/hdt/core/Activator.java
new file mode 100644
index 0000000..624d949
--- /dev/null
+++ b/org.apache.hdt.core/src/org/apache/hdt/core/Activator.java
@@ -0,0 +1,31 @@
+package org.apache.hdt.core;
+
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+
+public class Activator implements BundleActivator {
+
+	private static BundleContext context;
+	public static final String PLUGIN_ID = "org.apache.hdt.core";
+
+	static BundleContext getContext() {
+		return context;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
+	 */
+	public void start(BundleContext bundleContext) throws Exception {
+		Activator.context = bundleContext;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
+	 */
+	public void stop(BundleContext bundleContext) throws Exception {
+		Activator.context = null;
+	}
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-hdt/blob/c8651b88/org.apache.hdt.core/src/org/apache/hdt/core/natures/MapReduceNature.java
----------------------------------------------------------------------
diff --git a/org.apache.hdt.core/src/org/apache/hdt/core/natures/MapReduceNature.java b/org.apache.hdt.core/src/org/apache/hdt/core/natures/MapReduceNature.java
new file mode 100644
index 0000000..7b10d25
--- /dev/null
+++ b/org.apache.hdt.core/src/org/apache/hdt/core/natures/MapReduceNature.java
@@ -0,0 +1,151 @@
+/**
+ * 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 org.apache.hdt.core.natures;
+
+import java.io.File;
+import java.io.FileFilter;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectNature;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.QualifiedName;
+import org.eclipse.jdt.core.IClasspathEntry;
+import org.eclipse.jdt.core.IJavaProject;
+import org.eclipse.jdt.core.JavaCore;
+
+import org.apache.hdt.core.Activator;
+
+/**
+ * Class to configure and deconfigure an Eclipse project with the MapReduce
+ * project nature.
+ */
+
+public class MapReduceNature implements IProjectNature {
+
+  public static final String ID = "org.apache.hadoop.eclipse.Nature";
+
+  private IProject project;
+
+  static Logger log = Logger.getLogger(MapReduceNature.class.getName());
+
+  /**
+   * Configures an Eclipse project as a Map/Reduce project by adding the
+   * Hadoop libraries to a project's classpath.
+   */
+  /*
+   * TODO Versioning connector needed here
+   */
+  public void configure() throws CoreException {
+    String path =
+        project.getPersistentProperty(new QualifiedName(Activator.PLUGIN_ID,
+            "hadoop.runtime.path"));
+
+    File dir = new File(path);
+    final ArrayList<File> coreJars = new ArrayList<File>();
+    dir.listFiles(new FileFilter() {
+      public boolean accept(File pathname) {
+        String fileName = pathname.getName();
+
+        // get the hadoop core jar without touching test or examples
+        // older version of hadoop don't use the word "core" -- eyhung
+        if ((fileName.indexOf("hadoop") != -1) && (fileName.endsWith("jar"))
+            && (fileName.indexOf("test") == -1)
+            && (fileName.indexOf("examples") == -1)) {
+          coreJars.add(pathname);
+        }
+
+        return false; // we don't care what this returns
+      }
+    });
+    File dir2 = new File(path + File.separatorChar + "lib");
+    if (dir2.exists() && dir2.isDirectory()) {
+      dir2.listFiles(new FileFilter() {
+        public boolean accept(File pathname) {
+          if ((!pathname.isDirectory())
+              && (pathname.getName().endsWith("jar"))) {
+            coreJars.add(pathname);
+          }
+
+          return false; // we don't care what this returns
+        }
+      });
+    }
+
+    // Add Hadoop libraries onto classpath
+    IJavaProject javaProject = JavaCore.create(getProject());
+    // Bundle bundle = Activator.getDefault().getBundle();
+    try {
+      IClasspathEntry[] currentCp = javaProject.getRawClasspath();
+      IClasspathEntry[] newCp =
+          new IClasspathEntry[currentCp.length + coreJars.size()];
+      System.arraycopy(currentCp, 0, newCp, 0, currentCp.length);
+
+      final Iterator<File> i = coreJars.iterator();
+      int count = 0;
+      while (i.hasNext()) {
+        // for (int i = 0; i < s_coreJarNames.length; i++) {
+
+        final File f = (File) i.next();
+        // URL url = FileLocator.toFileURL(FileLocator.find(bundle, new
+        // Path("lib/" + s_coreJarNames[i]), null));
+        URL url = f.toURI().toURL();
+        log.finer("hadoop library url.getPath() = " + url.getPath());
+
+        newCp[newCp.length - 1 - count] =
+            JavaCore.newLibraryEntry(new Path(url.getPath()), null, null);
+        count++;
+      }
+
+      javaProject.setRawClasspath(newCp, new NullProgressMonitor());
+    } catch (Exception e) {
+      log.log(Level.SEVERE, "IOException generated in "
+          + this.getClass().getCanonicalName(), e);
+    }
+  }
+
+  /**
+   * Deconfigure a project from MapReduce status. Currently unimplemented.
+   */
+  public void deconfigure() throws CoreException {
+    // TODO Auto-generated method stub
+  }
+
+  /**
+   * Returns the project to which this project nature applies.
+   */
+  public IProject getProject() {
+    return this.project;
+  }
+
+  /**
+   * Sets the project to which this nature applies. Used when instantiating
+   * this project nature runtime.
+   */
+  public void setProject(IProject project) {
+    this.project = project;
+  }
+
+}


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