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commons-io-2.6-sources.jar - Apache Commons IO
commons-io-2.6-sources.jar is the source JAR file for Apache Commons IO 2.6, which is a library of utilities to assist with developing IO functionality.
JAR File Size and Download Location:
JAR name: commons-io-2.6-sources.jar Target JDK version: 1.7 Dependency: None File size: 280,834 bytes Release date: 15-Oct-2017 Download: Apache Commons IO Website
✍: FYIcenter.com
⏎ org/apache/commons/io/output/ProxyWriter.java
/* * 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.commons.io.output; import java.io.FilterWriter; import java.io.IOException; import java.io.Writer; /** * A Proxy stream which acts as expected, that is it passes the method * calls on to the proxied stream and doesn't change which methods are * being called. It is an alternative base class to FilterWriter * to increase reusability, because FilterWriter changes the * methods being called, such as write(char[]) to write(char[], int, int) * and write(String) to write(String, int, int). * */ public class ProxyWriter extends FilterWriter { /** * Constructs a new ProxyWriter. * * @param proxy the Writer to delegate to */ public ProxyWriter(final Writer proxy) { super(proxy); // the proxy is stored in a protected superclass variable named 'out' } /** * Invokes the delegate's <code>append(char)</code> method. * @param c The character to write * @return this writer * @throws IOException if an I/O error occurs * @since 2.0 */ @Override public Writer append(final char c) throws IOException { try { beforeWrite(1); out.append(c); afterWrite(1); } catch (final IOException e) { handleIOException(e); } return this; } /** * Invokes the delegate's <code>append(CharSequence, int, int)</code> method. * @param csq The character sequence to write * @param start The index of the first character to write * @param end The index of the first character to write (exclusive) * @return this writer * @throws IOException if an I/O error occurs * @since 2.0 */ @Override public Writer append(final CharSequence csq, final int start, final int end) throws IOException { try { beforeWrite(end - start); out.append(csq, start, end); afterWrite(end - start); } catch (final IOException e) { handleIOException(e); } return this; } /** * Invokes the delegate's <code>append(CharSequence)</code> method. * @param csq The character sequence to write * @return this writer * @throws IOException if an I/O error occurs * @since 2.0 */ @Override public Writer append(final CharSequence csq) throws IOException { try { int len = 0; if (csq != null) { len = csq.length(); } beforeWrite(len); out.append(csq); afterWrite(len); } catch (final IOException e) { handleIOException(e); } return this; } /** * Invokes the delegate's <code>write(int)</code> method. * @param idx the character to write * @throws IOException if an I/O error occurs */ @Override public void write(final int idx) throws IOException { try { beforeWrite(1); out.write(idx); afterWrite(1); } catch (final IOException e) { handleIOException(e); } } /** * Invokes the delegate's <code>write(char[])</code> method. * @param chr the characters to write * @throws IOException if an I/O error occurs */ @Override public void write(final char[] chr) throws IOException { try { int len = 0; if (chr != null) { len = chr.length; } beforeWrite(len); out.write(chr); afterWrite(len); } catch (final IOException e) { handleIOException(e); } } /** * Invokes the delegate's <code>write(char[], int, int)</code> method. * @param chr the characters to write * @param st The start offset * @param len The number of characters to write * @throws IOException if an I/O error occurs */ @Override public void write(final char[] chr, final int st, final int len) throws IOException { try { beforeWrite(len); out.write(chr, st, len); afterWrite(len); } catch (final IOException e) { handleIOException(e); } } /** * Invokes the delegate's <code>write(String)</code> method. * @param str the string to write * @throws IOException if an I/O error occurs */ @Override public void write(final String str) throws IOException { try { int len = 0; if (str != null) { len = str.length(); } beforeWrite(len); out.write(str); afterWrite(len); } catch (final IOException e) { handleIOException(e); } } /** * Invokes the delegate's <code>write(String)</code> method. * @param str the string to write * @param st The start offset * @param len The number of characters to write * @throws IOException if an I/O error occurs */ @Override public void write(final String str, final int st, final int len) throws IOException { try { beforeWrite(len); out.write(str, st, len); afterWrite(len); } catch (final IOException e) { handleIOException(e); } } /** * Invokes the delegate's <code>flush()</code> method. * @throws IOException if an I/O error occurs */ @Override public void flush() throws IOException { try { out.flush(); } catch (final IOException e) { handleIOException(e); } } /** * Invokes the delegate's <code>close()</code> method. * @throws IOException if an I/O error occurs */ @Override public void close() throws IOException { try { out.close(); } catch (final IOException e) { handleIOException(e); } } /** * Invoked by the write methods before the call is proxied. The number * of chars to be written (1 for the {@link #write(int)} method, buffer * length for {@link #write(char[])}, etc.) is given as an argument. * <p> * Subclasses can override this method to add common pre-processing * functionality without having to override all the write methods. * The default implementation does nothing. * * @since 2.0 * @param n number of chars to be written * @throws IOException if the pre-processing fails */ protected void beforeWrite(final int n) throws IOException { } /** * Invoked by the write methods after the proxied call has returned * successfully. The number of chars written (1 for the * {@link #write(int)} method, buffer length for {@link #write(char[])}, * etc.) is given as an argument. * <p> * Subclasses can override this method to add common post-processing * functionality without having to override all the write methods. * The default implementation does nothing. * * @since 2.0 * @param n number of chars written * @throws IOException if the post-processing fails */ protected void afterWrite(final int n) throws IOException { } /** * Handle any IOExceptions thrown. * <p> * This method provides a point to implement custom exception * handling. The default behaviour is to re-throw the exception. * @param e The IOException thrown * @throws IOException if an I/O error occurs * @since 2.0 */ protected void handleIOException(final IOException e) throws IOException { throw e; } }
⏎ org/apache/commons/io/output/ProxyWriter.java
Or download all of them as a single archive file:
File name: commons-io-2.6-sources.jar File size: 280834 bytes Release date: 2017-10-05 Download
⇒ Download and Install commons-io-2.5-bin.zip
2020-12-09, 61569👍, 1💬
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