jena-base/src/main/java/org/apache/jena/atlas/io/Writer2.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.jena.atlas.io;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.Writer;

import org.apache.jena.atlas.lib.Closeable;

/** A Writer, without the checked exceptions. */

public class Writer2 extends AWriterBase implements AWriter, Closeable
{
    protected final Writer writer;

    public static Writer2 wrapNoBuffer(Writer writer) {
        return new Writer2(writer);
    }

    public static Writer2 wrap(Writer writer) {
        if ( writer instanceof BufferedWriter )
            return new Writer2(writer);
        if ( writer instanceof BufferingWriter )
            return new Writer2(writer);

        writer = new BufferingWriter(writer);
        return new Writer2(writer);
    }

    protected Writer2(Writer writer) {
        this.writer = writer;
    }

    @Override
    public void print(char ch) {
        try {
            writer.write(ch);
        } catch (IOException ex) {
            IO.exception(ex);
        }
    }

    @Override
    public void print(String string) {
        try {
            writer.write(string);
        } catch (IOException ex) {
            IO.exception(ex);
        }
    }

    @Override
    public void print(char[] cbuf) {
        try {
            writer.write(cbuf);
        } catch (IOException ex) {
            IO.exception(ex);
        }
    }

    @Override
    public void flush() {
        try {
            writer.flush();
        } catch (IOException ex) {
            IO.exception(ex);
        }
    }

    @Override
    public void close() {
        try {
            writer.close();
        } catch (IOException ex) {
            IO.exception(ex);
        }
    }

    @Override
    public void printf(String fmt, Object...args) {
        print(String.format(fmt, args));
    }

    @Override
    public void println(String obj) {
        print(obj);
        print("\n");
    }

    @Override
    public void println() {
        print("\n");
    }

    @Override
    public String toString() {
        return writer.toString();
    }
}