001// Copyright 2006, 2007 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.internal.util;
016
017import java.io.PrintWriter;
018import java.io.StringWriter;
019
020/**
021 * Utility for collecting the output of a {@link java.io.PrintWriter}.
022 */
023public class PrintOutCollector
024{
025    private final StringWriter stringWriter;
026
027    private PrintWriter printWriter;
028
029    public PrintOutCollector()
030    {
031        stringWriter = new StringWriter();
032        printWriter = new PrintWriter(stringWriter);
033    }
034
035    public PrintWriter getPrintWriter()
036    {
037        return printWriter;
038    }
039
040    /**
041     * Closes the {@link PrintWriter} and returns the accumulated text output.
042     */
043    public String getPrintOut()
044    {
045        printWriter.close();
046        return stringWriter.toString();
047
048    }
049
050}