001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.geronimo.kernel.repository;
018
019 import java.io.InputStream;
020 import java.io.File;
021 import java.io.IOException;
022 import java.io.BufferedOutputStream;
023 import java.io.FileOutputStream;
024 import java.io.BufferedInputStream;
025
026 import org.apache.geronimo.kernel.repository.ArtifactTypeHandler;
027 import org.apache.geronimo.kernel.repository.Artifact;
028 import org.apache.geronimo.kernel.repository.FileWriteMonitor;
029
030 /**
031 * @version $Rev: 476049 $ $Date: 2006-11-17 15:35:17 +1100 (Fri, 17 Nov 2006) $
032 */
033 public class CopyArtifactTypeHandler implements ArtifactTypeHandler {
034 private final static int TRANSFER_NOTIFICATION_SIZE = 10240; // announce every this many bytes
035 private final static int TRANSFER_BUF_SIZE = 10240; // try this many bytes at a time
036
037 public void install(InputStream source, int size, Artifact artifact, FileWriteMonitor monitor, File target) throws IOException {
038 // assure that the target directory exists
039 File parent = target.getParentFile();
040 if (!parent.exists() && !parent.mkdirs()) {
041 throw new RuntimeException("Unable to create directory " + parent.getAbsolutePath());
042 }
043
044 // copy it
045 if (monitor != null) {
046 monitor.writeStarted(artifact.toString(), size);
047 }
048 int total = 0;
049 BufferedOutputStream out = null;
050 BufferedInputStream in = null;
051 try {
052 int threshold = TRANSFER_NOTIFICATION_SIZE;
053 out = new BufferedOutputStream(new FileOutputStream(target));
054 in = new BufferedInputStream(source);
055 byte[] buf = new byte[TRANSFER_BUF_SIZE];
056 int count;
057 while ((count = in.read(buf)) > -1) {
058 out.write(buf, 0, count);
059 if (monitor != null) {
060 total += count;
061 if (total > threshold) {
062 threshold += TRANSFER_NOTIFICATION_SIZE;
063 monitor.writeProgress(total);
064 }
065 }
066 }
067 out.close(); // also flushes the stream
068 out = null;
069 in.close();
070 in = null;
071 } finally {
072 if (out != null) {
073 try {
074 out.close();
075 } catch (IOException ignored) {
076 }
077 }
078 if (in != null) {
079 try {
080 in.close();
081 } catch (IOException ignored) {
082 }
083 }
084 if (monitor != null) {
085 monitor.writeComplete(total);
086 }
087 }
088 }
089 }