
com.github.jknack.handlebars.internal.FastStringWriter Maven / Gradle / Ivy
/**
* Copyright (c) 2012-2013 Edgar Espina
*
* This file is part of Handlebars.java.
*
* 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 com.github.jknack.handlebars.internal;
import java.io.IOException;
import java.io.Writer;
/**
* A string writer without locking.
*
* @author edgar.espina
* @since 0.1.0
*/
class FastStringWriter extends Writer {
/**
* The internal buffer.
*/
private final StringBuilder buffer = new StringBuilder();
@Override
public void write(final char[] buffer) throws IOException {
this.buffer.append(buffer);
}
@Override
public void write(final int c) throws IOException {
this.buffer.append((char) c);
}
@Override
public void write(final String str) throws IOException {
this.buffer.append(str);
}
@Override
public void write(final String str, final int off, final int len)
throws IOException {
buffer.append(str, off, off + len);
}
@Override
public void write(final char[] buffer, final int off, final int len)
throws IOException {
if (off < 0 || off > buffer.length || len < 0
|| off + len > buffer.length || off + len < 0) {
throw new IndexOutOfBoundsException();
} else if (len == 0) {
return;
}
this.buffer.append(buffer, off, len);
}
@Override
public void flush() throws IOException {
}
@Override
public void close() throws IOException {
buffer.delete(0, buffer.length());
}
@Override
public String toString() {
return buffer.toString();
}
}
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