| /* |
| * 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.uima.test.junit_extension; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.PrintStream; |
| |
| /** |
| * This class manupulates the output of the system. Methode output like System.out.println("blah") |
| * may be send to something else than the console. |
| */ |
| public class ManageOutputDevice { |
| |
| private static PrintStream sysOutPS; |
| |
| private static PrintStream sysErrPS; |
| static { |
| sysOutPS = System.out; |
| sysErrPS = System.err; |
| } |
| |
| /** |
| * sets the <code>System.out</code> to a file based <code>java.io.PrintStream</code> |
| * |
| * @param descriptor |
| * a full qualified filename, see {@link java.io.File#File(String pathname)} |
| * @throws FileNotFoundException - |
| */ |
| public static void setSysOutToFile(String descriptor) throws FileNotFoundException { |
| File f = new File(descriptor); |
| PrintStream printStream = new PrintStream(new BufferedOutputStream(new FileOutputStream(f)), |
| true); |
| System.setOut(printStream); |
| } |
| |
| /** |
| * sets the <code>System.out</code> to the value, which was set, when the class was loaded by |
| * the VM. |
| */ |
| public static void setSysOutToDefault() { |
| System.setOut(sysOutPS); |
| } |
| |
| /** |
| * sets the <code>System.out</code> to a virtual <code>java.io.ByteArrayOutputStream</code> |
| */ |
| public static void setSysOutToNirvana() { |
| System.setOut(new PrintStream(new ByteArrayOutputStream())); |
| } |
| |
| /** |
| * sets the <code>System.err</code> to a file based <code>java.io.PrintStream</code> |
| * |
| * @param descriptor - |
| * @throws FileNotFoundException - |
| */ |
| public static void setSysErrToFile(String descriptor) throws FileNotFoundException { |
| File f = new File(descriptor); |
| PrintStream printStream = new PrintStream(new BufferedOutputStream(new FileOutputStream(f)), |
| true); |
| System.setErr(printStream); |
| } |
| |
| /** |
| * sets the <code>System.err</code> to the value, which was set, when this class was loaded by |
| * the VM. |
| */ |
| public static void setSysErrToDefault() { |
| System.setErr(sysErrPS); |
| } |
| |
| /** |
| * sets the <code>System.err</code> to a virtual <code>java.io.ByteArrayOutputStream</code> |
| */ |
| public static void setSysErrToNirvana() { |
| System.setErr(new PrintStream(new ByteArrayOutputStream())); |
| } |
| |
| /** |
| * sets the <code>System.err</code> and <code>System.out</code> to a virtual |
| * <code>java.io.ByteArrayOutputStream</code> |
| */ |
| public static void setAllSystemOutputToNirvana() { |
| setSysErrToNirvana(); |
| setSysOutToNirvana(); |
| } |
| |
| /** |
| * sets the <code>System.err</code> and <code>System.out</code> to their values, which were |
| * set, when this class was loaded. |
| */ |
| public static void setAllSystemOutputToDefault() { |
| setSysErrToDefault(); |
| setSysOutToDefault(); |
| } |
| } |