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/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
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 * 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
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 * software distributed under the License is distributed on an
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
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 * This software consists of voluntary contributions made by many
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package org.apache.http.config;

import org.apache.http.util.Args;

/**
 * HTTP Message constraints: line length and header count.
 * 

* Please note that line length is defined in bytes and not characters. * This is only relevant however when using non-standard HTTP charsets * for protocol elements such as UTF-8. *

* * @since 4.3 */ public class MessageConstraints implements Cloneable { public static final MessageConstraints DEFAULT = new Builder().build(); private final int maxLineLength; private final int maxHeaderCount; MessageConstraints(final int maxLineLength, final int maxHeaderCount) { super(); this.maxLineLength = maxLineLength; this.maxHeaderCount = maxHeaderCount; } public int getMaxLineLength() { return maxLineLength; } public int getMaxHeaderCount() { return maxHeaderCount; } @Override protected MessageConstraints clone() throws CloneNotSupportedException { return (MessageConstraints) super.clone(); } @Override public String toString() { final StringBuilder builder = new StringBuilder(); builder.append("[maxLineLength=").append(maxLineLength) .append(", maxHeaderCount=").append(maxHeaderCount) .append("]"); return builder.toString(); } public static MessageConstraints lineLen(final int max) { return new MessageConstraints(Args.notNegative(max, "Max line length"), -1); } public static MessageConstraints.Builder custom() { return new Builder(); } public static MessageConstraints.Builder copy(final MessageConstraints config) { Args.notNull(config, "Message constraints"); return new Builder() .setMaxHeaderCount(config.getMaxHeaderCount()) .setMaxLineLength(config.getMaxLineLength()); } public static class Builder { private int maxLineLength; private int maxHeaderCount; Builder() { this.maxLineLength = -1; this.maxHeaderCount = -1; } public Builder setMaxLineLength(final int maxLineLength) { this.maxLineLength = maxLineLength; return this; } public Builder setMaxHeaderCount(final int maxHeaderCount) { this.maxHeaderCount = maxHeaderCount; return this; } public MessageConstraints build() { return new MessageConstraints(maxLineLength, maxHeaderCount); } } }




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