org.spf4j.base.EscapeJsonStringAppendableWrapper Maven / Gradle / Ivy

Go to download
/*
 * Copyright (c) 2001-2017, Zoltan Farkas All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Additionally licensed with:
 *
 * 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.spf4j.base;

import java.io.IOException;
import javax.annotation.Nullable;

/**
 *
 * @author zoly
 */
public final class EscapeJsonStringAppendableWrapper implements Appendable {

  private final Appendable wrapped;

  public EscapeJsonStringAppendableWrapper(final Appendable wrapped) {
    this.wrapped = wrapped;
  }

  @Override
  public Appendable append(@Nullable final CharSequence pcsq) throws IOException {
    CharSequence csq = pcsq == null ? "null" : pcsq;
    for (int i = 0, l = csq.length(); i < l; i++) {
      AppendableUtils.appendJsonStringEscapedChar(csq.charAt(i), wrapped);
    }
    return this;
  }

  @Override
  public Appendable append(final CharSequence csq, final int start, final int end) throws IOException {
    for (int i = start; i < end; i++) {
      AppendableUtils.appendJsonStringEscapedChar(csq.charAt(i), wrapped);
    }
    return this;
  }

  @Override
  public Appendable append(final char c) throws IOException {
     AppendableUtils.appendJsonStringEscapedChar(c, wrapped);
     return this;
  }

  @Override
  public String toString() {
    return "EscapeJsonStringAppendableWrapper{" + "wrapped=" + wrapped + '}';
  }

}