001/*
002 * (C) Copyright 2006-2010 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 */
019package org.nuxeo.ecm.automation.client.jaxrs.util;
020
021import java.io.IOException;
022import java.util.ArrayList;
023
024import org.codehaus.jackson.JsonParser;
025import org.codehaus.jackson.JsonToken;
026import org.nuxeo.ecm.automation.client.model.OperationDocumentation;
027import org.nuxeo.ecm.automation.client.model.OperationDocumentation.Param;
028
029/**
030 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
031 */
032public class JsonOperationMarshaller {
033
034    public static OperationDocumentation read(JsonParser jp) throws IOException {
035        OperationDocumentation op = new OperationDocumentation();
036        JsonToken tok = jp.nextToken(); // skip {
037        while (tok != null && tok != JsonToken.END_OBJECT) {
038            String key = jp.getCurrentName();
039            jp.nextToken();
040            if ("id".equals(key)) {
041                op.id = jp.getText();
042            } else if ("aliases".equals(key)) {
043                op.aliases = readStringArray(jp);
044            } else if ("label".equals(key)) {
045                op.label = jp.getText();
046            } else if ("category".equals(key)) {
047                op.category = jp.getText();
048            } else if ("requires".equals(key)) {
049                op.requires = jp.getText();
050            } else if ("description".equals(key)) {
051                op.description = jp.getText();
052            } else if ("url".equals(key)) {
053                op.url = jp.getText();
054            } else if ("since".equals(key)) {
055                op.since = jp.getText();
056            } else if ("signature".equals(key)) {
057                op.signature = readStringArray(jp);
058            } else if ("params".equals(key)) {
059                readParams(jp, op);
060            } else {
061                jp.skipChildren();
062            }
063            tok = jp.nextToken();
064        }
065        if (tok == null) {
066            throw new IllegalArgumentException("Unexpected end of stream.");
067        }
068        return op;
069    }
070
071    public static String[] readStringArray(JsonParser jp) throws IOException {
072        JsonToken tok = jp.nextToken(); // skip [
073        if (tok == JsonToken.END_ARRAY) {
074            return null;
075        }
076        ArrayList<String> list = new ArrayList<String>();
077        do {
078            list.add(jp.getText());
079            tok = jp.nextToken();
080        } while (tok != JsonToken.END_ARRAY);
081        return list.toArray(new String[list.size()]);
082    }
083
084    private static void readParams(JsonParser jp, OperationDocumentation op) throws IOException {
085        JsonToken tok = jp.nextToken(); // skip [
086        if (tok == JsonToken.END_ARRAY) {
087            return;
088        }
089        do {
090            readParam(jp, op);
091            tok = jp.nextToken();
092        } while (tok != JsonToken.END_ARRAY);
093    }
094
095    private static void readParam(JsonParser jp, OperationDocumentation op) throws IOException {
096        Param para = new Param();
097        JsonToken tok = jp.nextToken(); // skip {
098        while (tok != null && tok != JsonToken.END_OBJECT) {
099            String key = jp.getCurrentName();
100            jp.nextToken();
101            if ("name".equals(key)) {
102                para.name = jp.getText();
103            } else if ("type".equals(key)) {
104                para.type = jp.getText();
105            } else if ("description".equals(key)) {
106                para.description = jp.getText();
107            } else if ("required".equals(key)) {
108                para.isRequired = jp.getBooleanValue();
109            } else if ("widget".equals(key)) {
110                para.widget = jp.getText();
111            } else if ("values".equals(key)) {
112                para.values = readStringArray(jp);
113            }
114            tok = jp.nextToken();
115        }
116        op.params.add(para);
117    }
118
119    public static void write(JsonParser jp, OperationDocumentation op) {
120
121    }
122
123}