org.pentaho.osgi.platform.plugin.deployer.impl.JSONUtil.java Source code

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/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2014 by Pentaho : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * 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.pentaho.osgi.platform.plugin.deployer.impl;

import org.json.simple.JSONValue;

import java.util.List;
import java.util.Map;

/**
 * Created by bryan on 9/3/14.
 */
public class JSONUtil {
    public String prettyPrintMapStringListString(Map<String, List<String>> map) {
        StringBuilder sb = new StringBuilder();
        appendOpen(sb);
        for (Map.Entry<String, List<String>> entry : map.entrySet()) {
            writeKeyAndSeparator(sb, entry.getKey(), 2);
            writeListOfStrings(sb, entry.getValue(), 4);
            sb.append(",\n");
        }
        if (map.size() > 0) {
            sb.setLength(sb.length() - 2);
        }
        appendClose(sb);
        return sb.toString();
    }

    public String prettyPrintMapStringString(Map<String, String> map) {
        StringBuilder sb = new StringBuilder();
        appendOpen(sb);
        for (Map.Entry<String, String> entry : map.entrySet()) {
            writeKeyAndSeparator(sb, entry.getKey(), 2);
            sb.append(JSONValue.toJSONString(entry.getValue()));
            sb.append(",\n");
        }
        if (map.size() > 0) {
            sb.setLength(sb.length() - 2);
        }
        appendClose(sb);
        return sb.toString();
    }

    private void appendOpen(StringBuilder stringBuilder) {
        stringBuilder.append("{\n");
    }

    private void appendClose(StringBuilder stringBuilder) {
        stringBuilder.append("\n}\n");
    }

    private void writeKeyAndSeparator(StringBuilder stringBuilder, String key, int spaceBefore) {
        for (int i = 0; i < spaceBefore; i++) {
            stringBuilder.append(' ');
        }
        stringBuilder.append(JSONValue.toJSONString(key));
        stringBuilder.append(" : ");
    }

    private void writeListOfStrings(StringBuilder stringBuilder, List<String> list, int spaceBefore) {
        stringBuilder.append("[ \n");
        for (String entry : list) {
            for (int i = 0; i < spaceBefore; i++) {
                stringBuilder.append(' ');
            }
            stringBuilder.append(JSONValue.toJSONString(entry));
            stringBuilder.append(",\n");
        }
        stringBuilder.setLength(stringBuilder.length() - 2);
        stringBuilder.append(" ]");
    }
}