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Groovy example source code file (InputStreamReaderSource.java)

This example Groovy source code file (InputStreamReaderSource.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

abstractreadersource, compilerconfiguration, inputstream, inputstream, inputstreamreader, inputstreamreadersource, inputstreamreadersource, io, ioexception, reader, reader, the, the

The Groovy InputStreamReaderSource.java source code

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * Licensed 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.codehaus.groovy.control.io;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

import org.codehaus.groovy.control.CompilerConfiguration;

/**
 * A ReaderSource for source strings.
 *
 * @author <a href="mailto:cpoirier@dreaming.org">Chris Poirier
 * @version $Id: InputStreamReaderSource.java 6778 2007-07-02 10:40:33Z glaforge $
 */
public class InputStreamReaderSource extends AbstractReaderSource {
    private InputStream stream;  // The InputStream from which we produce a Reader.

    /**
     * Creates the ReaderSource from a File descriptor.
     *
     * @param stream        stream containing source
     * @param configuration configuration for compiling source
     */
    public InputStreamReaderSource(InputStream stream, CompilerConfiguration configuration) {
        super(configuration);
        this.stream = stream;
    }

    /**
     * Returns a new Reader on the underlying source object.
     */
    public Reader getReader() throws IOException {
        if (stream != null) {
            Reader reader = new InputStreamReader(stream, configuration.getSourceEncoding());
            stream = null;
            return reader;
        }
        return null;
    }

    /**
     * Returns true if the source can be restarted (ie. if getReader()
     * will return non-null on subsequent calls.
     */
    public boolean canReopenSource() {
        return false;
    }
}

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