1 files changed, 97 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/GUnzip.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/GUnzip.java
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--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/GUnzip.java
@@ -0,0 +1,97 @@
+/*
+ *  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;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.zip.GZIPInputStream;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.util.FileUtils;
+
+/**
+ * Expands a file that has been compressed with the GZIP
+ * algorithm. Normally used to compress non-compressed archives such
+ * as TAR files.
+ *
+ * @since Ant 1.1
+ *
+ * @ant.task category="packaging"
+ */
+
+public class GUnzip extends Unpack {
+    private static final int BUFFER_SIZE = 8 * 1024;
+    private static final String DEFAULT_EXTENSION = ".gz";
+
+    /**
+     * Get the default extension.
+     * @return the value ".gz"
+     */
+    protected String getDefaultExtension() {
+        return DEFAULT_EXTENSION;
+    }
+
+    /**
+     * Implement the gunzipping.
+     */
+    protected void extract() {
+        if (source.lastModified() > dest.lastModified()) {
+            log("Expanding " + source.getAbsolutePath() + " to "
+                        + dest.getAbsolutePath());
+
+            FileOutputStream out = null;
+            GZIPInputStream zIn = null;
+            InputStream fis = null;
+            try {
+                out = new FileOutputStream(dest);
+                fis = srcResource.getInputStream();
+                zIn = new GZIPInputStream(fis);
+                byte[] buffer = new byte[BUFFER_SIZE];
+                int count = 0;
+                do {
+                    out.write(buffer, 0, count);
+                    count = zIn.read(buffer, 0, buffer.length);
+                } while (count != -1);
+            } catch (IOException ioe) {
+                String msg = "Problem expanding gzip " + ioe.getMessage();
+                throw new BuildException(msg, ioe, getLocation());
+            } finally {
+                FileUtils.close(fis);
+                FileUtils.close(out);
+                FileUtils.close(zIn);
+            }
+        }
+    }
+
+    /**
+     * Whether this task can deal with non-file resources.
+     *
+     * <p>This implementation returns true only if this task is
+     * &lt;gunzip&gt;.  Any subclass of this class that also wants to
+     * support non-file resources needs to override this method.  We
+     * need to do so for backwards compatibility reasons since we
+     * can't expect subclasses to support resources.</p>
+     * @return true if this task supports non file resources.
+     * @since Ant 1.7
+     */
+    protected boolean supportsNonFileResources() {
+        return getClass().equals(GUnzip.class);
+    }
+}