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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The SFC 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.openqa.selenium.cli;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
import java.nio.charset.Charset;
import org.openqa.selenium.internal.Require;
public class WrappedPrintWriter extends PrintWriter {
private final int lineLength;
private final int indentBy;
private int position = 0;
public WrappedPrintWriter(OutputStream out, int lineLength, int indentBy) {
this(new OutputStreamWriter(out, Charset.defaultCharset()), lineLength, indentBy);
}
public WrappedPrintWriter(Writer out, int lineLength, int indentBy) {
super(out);
this.lineLength =
Require.argument("Line length", lineLength)
.greaterThan(9, "Lines must be 10 or more characters");
this.indentBy = Require.nonNegative("An indent", indentBy);
}
@Override
public void write(int c) {
if (c == '\n') {
super.write(c);
position = 0;
} else if (position > lineLength && Character.isWhitespace(c)) {
super.write('\n');
for (int i = 0; i < indentBy; i++) {
super.write(' ');
}
position = indentBy;
return;
} else {
super.write(c);
position++;
}
flush();
}
@Override
public void write(char[] buf, int off, int len) {
for (int i = 0; i < len; i++) {
write(buf[off + i]);
}
}
@Override
public void write(String s, int off, int len) {
for (int i = 0; i < len; i++) {
write(s.charAt(off + i));
}
}
}
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