1 files changed, 157 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/extension/JarLibAvailableTask.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/extension/JarLibAvailableTask.java
new file mode 100644
index 00000000..cebcf0d5
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/extension/JarLibAvailableTask.java
@@ -0,0 +1,157 @@
+/*
+ *  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.tools.ant.taskdefs.optional.extension;
+
+import java.io.File;
+import java.util.Iterator;
+import java.util.Vector;
+import java.util.jar.Manifest;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Task;
+
+/**
+ * Checks whether an extension is present in a fileset or an extensionSet.
+ *
+ * @ant.task name="jarlib-available"
+ */
+public class JarLibAvailableTask extends Task {
+    /**
+     * The library to display information about.
+     */
+    private File libraryFile;
+
+    /**
+     * Filesets specifying all the librarys
+     * to display information about.
+     */
+    private final Vector extensionFileSets = new Vector();
+
+    /**
+     * The name of the property to set if extension is available.
+     */
+    private String propertyName;
+
+    /**
+     * The extension that is required.
+     */
+    private ExtensionAdapter requiredExtension;
+
+    /**
+     * The name of property to set if extensions are available.
+     *
+     * @param property The name of property to set if extensions is available.
+     */
+    public void setProperty(final String property) {
+        this.propertyName = property;
+    }
+
+    /**
+     * The JAR library to check.
+     *
+     * @param file The jar library to check.
+     */
+    public void setFile(final File file) {
+        this.libraryFile = file;
+    }
+
+    /**
+     * Set the Extension looking for.
+     *
+     * @param extension Set the Extension looking for.
+     */
+    public void addConfiguredExtension(final ExtensionAdapter extension) {
+        if (null != requiredExtension) {
+            final String message = "Can not specify extension to "
+                + "search for multiple times.";
+            throw new BuildException(message);
+        }
+        requiredExtension = extension;
+    }
+
+    /**
+     * Adds a set of extensions to search in.
+     *
+     * @param extensionSet a set of extensions to search in.
+     */
+    public void addConfiguredExtensionSet(final ExtensionSet extensionSet) {
+        extensionFileSets.addElement(extensionSet);
+    }
+
+    /**
+     * Execute the task.
+     *
+     * @throws BuildException if something goes wrong.
+     */
+    public void execute() throws BuildException {
+        validate();
+
+        final Extension test = requiredExtension.toExtension();
+
+        // Check if list of files to check has been specified
+        if (!extensionFileSets.isEmpty()) {
+            final Iterator iterator = extensionFileSets.iterator();
+            while (iterator.hasNext()) {
+                final ExtensionSet extensionSet
+                    = (ExtensionSet) iterator.next();
+                final Extension[] extensions =
+                    extensionSet.toExtensions(getProject());
+                for (int i = 0; i < extensions.length; i++) {
+                    final Extension extension = extensions[ i ];
+                    if (extension.isCompatibleWith(test)) {
+                        getProject().setNewProperty(propertyName, "true");
+                    }
+                }
+            }
+        } else {
+            final Manifest manifest = ExtensionUtil.getManifest(libraryFile);
+            final Extension[] extensions = Extension.getAvailable(manifest);
+            for (int i = 0; i < extensions.length; i++) {
+                final Extension extension = extensions[ i ];
+                if (extension.isCompatibleWith(test)) {
+                    getProject().setNewProperty(propertyName, "true");
+                }
+            }
+        }
+    }
+
+    /**
+     * Validate the tasks parameters.
+     *
+     * @throws BuildException if invalid parameters found
+     */
+    private void validate() throws BuildException {
+        if (null == requiredExtension) {
+            final String message = "Extension element must be specified.";
+            throw new BuildException(message);
+        }
+
+        if (null == libraryFile && extensionFileSets.isEmpty()) {
+            final String message = "File attribute not specified.";
+            throw new BuildException(message);
+        }
+        if (null != libraryFile && !libraryFile.exists()) {
+            final String message = "File '" + libraryFile + "' does not exist.";
+            throw new BuildException(message);
+        }
+        if (null != libraryFile && !libraryFile.isFile()) {
+            final String message = "\'" + libraryFile + "\' is not a file.";
+            throw new BuildException(message);
+        }
+    }
+}