001    /**
002     * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.jsonwebservice;
016    
017    import com.liferay.portal.kernel.jsonwebservice.JSONWebService;
018    import com.liferay.portal.kernel.servlet.HttpMethods;
019    import com.liferay.portal.kernel.util.CharPool;
020    import com.liferay.portal.kernel.util.StringPool;
021    import com.liferay.portal.kernel.util.StringUtil;
022    
023    import java.lang.reflect.Method;
024    
025    /**
026     * @author Igor Spasic
027     */
028    public class JSONWebServiceMappingResolver {
029    
030            public String resolveHttpMethod(Method method) {
031                    JSONWebService jsonWebServiceAnnotation = method.getAnnotation(
032                            JSONWebService.class);
033    
034                    String httpMethod = null;
035    
036                    if (jsonWebServiceAnnotation != null) {
037                            httpMethod = jsonWebServiceAnnotation.method().trim();
038                    }
039    
040                    if ((httpMethod != null) && (httpMethod.length() != 0)) {
041                            return httpMethod;
042                    }
043    
044                    String methodName = method.getName();
045    
046                    String methodNamePrefix = _cutPrefix(methodName);
047    
048                    return _prefixToHttpMethod(methodNamePrefix);
049            }
050    
051            public String resolvePath(Class<?> clazz, Method method) {
052                    JSONWebService jsonWebServiceAnnotation = method.getAnnotation(
053                            JSONWebService.class);
054    
055                    String path = null;
056    
057                    if (jsonWebServiceAnnotation != null) {
058                            path = jsonWebServiceAnnotation.value().trim();
059                    }
060    
061                    if (path == null || path.length() == 0) {
062                            path = jodd.util.StringUtil.camelCaseToWords(
063                                    method.getName(), CharPool.DASH);
064                    }
065    
066                    if (!path.startsWith(StringPool.SLASH)) {
067                            path = StringPool.SLASH + path;
068    
069                            String pathFromClass = null;
070    
071                            jsonWebServiceAnnotation = clazz.getAnnotation(
072                                    JSONWebService.class);
073    
074                            if (jsonWebServiceAnnotation != null) {
075                                    pathFromClass = jsonWebServiceAnnotation.value().trim();
076                            }
077    
078                            if (pathFromClass == null || pathFromClass.length() == 0) {
079                                    pathFromClass = _classNameToPath(clazz);
080                            }
081    
082                            if (!pathFromClass.startsWith(StringPool.SLASH)) {
083                                    pathFromClass = StringPool.SLASH + pathFromClass;
084                            }
085    
086                            path = pathFromClass + path;
087    
088                    }
089                    return path;
090            }
091    
092            private String _classNameToPath(Class<?> clazz) {
093                    String className = clazz.getSimpleName();
094    
095                    className = StringUtil.replace(className, "Impl", StringPool.BLANK);
096                    className = StringUtil.replace(className, "Service", StringPool.BLANK);
097    
098                    return className.toLowerCase();
099            }
100    
101            private String _cutPrefix(String methodName) {
102                    int i = 0;
103    
104                    while (i < methodName.length()) {
105                            if (Character.isUpperCase(methodName.charAt(i))) {
106                                    break;
107                            }
108    
109                            i++;
110                    }
111    
112                    return methodName.substring(0, i);
113            }
114    
115            private String _prefixToHttpMethod(String prefix) {
116                    for (String postPrefix : _GET_PREFIXES) {
117                            if (prefix.equals(postPrefix)) {
118                                    return HttpMethods.GET;
119                            }
120                    }
121    
122                    return HttpMethods.POST;
123            }
124    
125            private static final String[] _GET_PREFIXES = new String[] {
126                    "get", "has", "is",
127            };
128    
129    }