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.nuxeo.ecm.automation.client.model.OperationDocumentation;
025import org.nuxeo.ecm.automation.client.model.OperationDocumentation.Param;
026
027import com.fasterxml.jackson.core.JsonParser;
028import com.fasterxml.jackson.core.JsonToken;
029
030/**
031 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
032 */
033public class JsonOperationMarshaller {
034
035    public static OperationDocumentation read(JsonParser jp) throws IOException {
036        OperationDocumentation op = new OperationDocumentation();
037        JsonToken tok = jp.nextToken(); // skip {
038        while (tok != null && tok != JsonToken.END_OBJECT) {
039            String key = jp.getCurrentName();
040            jp.nextToken();
041            if ("id".equals(key)) {
042                op.id = jp.getText();
043            } else if ("aliases".equals(key)) {
044                op.aliases = readStringArray(jp);
045            } else if ("label".equals(key)) {
046                op.label = jp.getText();
047            } else if ("category".equals(key)) {
048                op.category = jp.getText();
049            } else if ("requires".equals(key)) {
050                op.requires = jp.getText();
051            } else if ("description".equals(key)) {
052                op.description = jp.getText();
053            } else if ("url".equals(key)) {
054                op.url = jp.getText();
055            } else if ("since".equals(key)) {
056                op.since = jp.getText();
057            } else if ("signature".equals(key)) {
058                op.signature = readStringArray(jp);
059            } else if ("params".equals(key)) {
060                readParams(jp, op);
061            } else {
062                jp.skipChildren();
063            }
064            tok = jp.nextToken();
065        }
066        if (tok == null) {
067            throw new IllegalArgumentException("Unexpected end of stream.");
068        }
069        return op;
070    }
071
072    public static String[] readStringArray(JsonParser jp) throws IOException {
073        JsonToken tok = jp.nextToken(); // skip [
074        if (tok == JsonToken.END_ARRAY) {
075            return null;
076        }
077        ArrayList<String> list = new ArrayList<String>();
078        do {
079            list.add(jp.getText());
080            tok = jp.nextToken();
081        } while (tok != JsonToken.END_ARRAY);
082        return list.toArray(new String[list.size()]);
083    }
084
085    private static void readParams(JsonParser jp, OperationDocumentation op) throws IOException {
086        JsonToken tok = jp.nextToken(); // skip [
087        if (tok == JsonToken.END_ARRAY) {
088            return;
089        }
090        do {
091            readParam(jp, op);
092            tok = jp.nextToken();
093        } while (tok != JsonToken.END_ARRAY);
094    }
095
096    private static void readParam(JsonParser jp, OperationDocumentation op) throws IOException {
097        Param para = new Param();
098        JsonToken tok = jp.nextToken(); // skip {
099        while (tok != null && tok != JsonToken.END_OBJECT) {
100            String key = jp.getCurrentName();
101            jp.nextToken();
102            if ("name".equals(key)) {
103                para.name = jp.getText();
104            } else if ("type".equals(key)) {
105                para.type = jp.getText();
106            } else if ("description".equals(key)) {
107                para.description = jp.getText();
108            } else if ("required".equals(key)) {
109                para.isRequired = jp.getBooleanValue();
110            } else if ("widget".equals(key)) {
111                para.widget = jp.getText();
112            } else if ("values".equals(key)) {
113                para.values = readStringArray(jp);
114            }
115            tok = jp.nextToken();
116        }
117        op.params.add(para);
118    }
119
120    public static void write(JsonParser jp, OperationDocumentation op) {
121
122    }
123
124}