diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/LazyFileOutputStream.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/LazyFileOutputStream.java | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/LazyFileOutputStream.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/LazyFileOutputStream.java deleted file mode 100644 index 7e5bf786..00000000 --- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/LazyFileOutputStream.java +++ /dev/null @@ -1,162 +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 org.apache.tools.ant.util; - -import java.io.File; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.OutputStream; - -/** - * Class that delays opening the output file until the first bytes - * shall be written or the method {@link #open open} has been invoked - * explicitly. - * - * @since Ant 1.6 - */ -public class LazyFileOutputStream extends OutputStream { - - private FileOutputStream fos; - private File file; - private boolean append; - private boolean alwaysCreate; - private boolean opened = false; - private boolean closed = false; - - /** - * Creates a stream that will eventually write to the file with - * the given name and replace it. - * @param name the filename. - */ - public LazyFileOutputStream(String name) { - this(name, false); - } - - /** - * Creates a stream that will eventually write to the file with - * the given name and optionally append to instead of replacing - * it. - * @param name the filename. - * @param append if true append rather than replace. - */ - public LazyFileOutputStream(String name, boolean append) { - this(new File(name), append); - } - - /** - * Creates a stream that will eventually write to the file with - * the given name and replace it. - * @param f the file to create. - */ - public LazyFileOutputStream(File f) { - this(f, false); - } - - /** - * Creates a stream that will eventually write to the file with - * the given name and optionally append to instead of replacing - * it. - * @param file the file to create. - * @param append if true append rather than replace. - */ - public LazyFileOutputStream(File file, boolean append) { - this(file, append, false); - } - - /** - * Creates a stream that will eventually write to the file with - * the given name, optionally append to instead of replacing - * it, and optionally always create a file (even if zero length). - * @param file the file to create. - * @param append if true append rather than replace. - * @param alwaysCreate if true create the file even if nothing to write. - */ - public LazyFileOutputStream(File file, boolean append, - boolean alwaysCreate) { - this.file = file; - this.append = append; - this.alwaysCreate = alwaysCreate; - } - - /** - * Explicitly open the file for writing. - * - * <p>Returns silently if the file has already been opened.</p> - * @throws IOException if there is an error. - */ - public void open() throws IOException { - ensureOpened(); - } - - /** - * Close the file. - * @throws IOException if there is an error. - */ - public synchronized void close() throws IOException { - if (alwaysCreate && !closed) { - ensureOpened(); - } - if (opened) { - fos.close(); - } - closed = true; - } - - /** - * Delegates to the three-arg version. - * @param b the bytearray to write. - * @throws IOException if there is a problem. - */ - public void write(byte[] b) throws IOException { - write(b, 0, b.length); - } - - /** - * Write part of a byte array. - * @param b the byte array. - * @param offset write from this index. - * @param len the number of bytes to write. - * @throws IOException if there is a problem. - */ - public synchronized void write(byte[] b, int offset, int len) - throws IOException { - ensureOpened(); - fos.write(b, offset, len); - } - - /** - * Write a byte. - * @param b the byte to write. - * @throws IOException if there is a problem. - */ - public synchronized void write(int b) throws IOException { - ensureOpened(); - fos.write(b); - } - - private synchronized void ensureOpened() throws IOException { - if (closed) { - throw new IOException(file + " has already been closed."); - } - - if (!opened) { - fos = new FileOutputStream(file.getAbsolutePath(), append); - opened = true; - } - } -} |