StringBuilderMarshaller.java example

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errai-master
/*
 * Copyright (C) 2011 Red Hat, Inc. and/or its affiliates.
 *
 * 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.jboss.errai.marshalling.client.marshallers;

import org.jboss.errai.marshalling.client.api.MarshallingSession;
import org.jboss.errai.marshalling.client.api.annotations.ClientMarshaller;
import org.jboss.errai.marshalling.client.api.annotations.ServerMarshaller;
import org.jboss.errai.marshalling.client.api.json.EJValue;
import org.jboss.errai.marshalling.client.util.MarshallUtil;

/**
 * @author Mike Brock <cbrock@redhat.com>
 */
@ClientMarshaller(StringBuilder.class)
@ServerMarshaller(StringBuilder.class)
public class StringBuilderMarshaller extends AbstractNullableMarshaller<StringBuilder> {
  public static final StringBuilderMarshaller INSTANCE = new StringBuilderMarshaller();

  @Override
  public StringBuilder[] getEmptyArray() {
    return new StringBuilder[0];
  }
  
  @Override
  public StringBuilder doNotNullDemarshall(final EJValue o, final MarshallingSession ctx) {
    return new StringBuilder(o.isString().stringValue());
  }

  @Override
  public String doNotNullMarshall(final StringBuilder o, final MarshallingSession ctx) {
    return "\"" + MarshallUtil.jsonStringEscape(o.toString()) + "\"";
  }
}