json/src/main/java/org/netbeans/html/json/impl/RcvrJSON.java
branchnetbeans
changeset 362 92fb71afdc0e
parent 358 80702021b851
child 365 5c93ad8c7a15
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/json/src/main/java/org/netbeans/html/json/impl/RcvrJSON.java	Mon Dec 16 16:59:43 2013 +0100
     1.3 @@ -0,0 +1,149 @@
     1.4 +/**
     1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
     1.6 + *
     1.7 + * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
     1.8 + *
     1.9 + * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
    1.10 + * Other names may be trademarks of their respective owners.
    1.11 + *
    1.12 + * The contents of this file are subject to the terms of either the GNU
    1.13 + * General Public License Version 2 only ("GPL") or the Common
    1.14 + * Development and Distribution License("CDDL") (collectively, the
    1.15 + * "License"). You may not use this file except in compliance with the
    1.16 + * License. You can obtain a copy of the License at
    1.17 + * http://www.netbeans.org/cddl-gplv2.html
    1.18 + * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
    1.19 + * specific language governing permissions and limitations under the
    1.20 + * License.  When distributing the software, include this License Header
    1.21 + * Notice in each file and include the License file at
    1.22 + * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this
    1.23 + * particular file as subject to the "Classpath" exception as provided
    1.24 + * by Oracle in the GPL Version 2 section of the License file that
    1.25 + * accompanied this code. If applicable, add the following below the
    1.26 + * License Header, with the fields enclosed by brackets [] replaced by
    1.27 + * your own identifying information:
    1.28 + * "Portions Copyrighted [year] [name of copyright owner]"
    1.29 + *
    1.30 + * Contributor(s):
    1.31 + *
    1.32 + * The Original Software is NetBeans. The Initial Developer of the Original
    1.33 + * Software is Oracle. Portions Copyright 2013-2013 Oracle. All Rights Reserved.
    1.34 + *
    1.35 + * If you wish your version of this file to be governed by only the CDDL
    1.36 + * or only the GPL Version 2, indicate your decision by adding
    1.37 + * "[Contributor] elects to include this software in this distribution
    1.38 + * under the [CDDL or GPL Version 2] license." If you do not indicate a
    1.39 + * single choice of license, a recipient has the option to distribute
    1.40 + * your version of this file under either the CDDL, the GPL Version 2 or
    1.41 + * to extend the choice of license to its licensees as provided above.
    1.42 + * However, if you add GPL Version 2 code and therefore, elected the GPL
    1.43 + * Version 2 license, then the option applies only if the new code is
    1.44 + * made subject to such option by the copyright holder.
    1.45 + */
    1.46 +package org.netbeans.html.json.impl;
    1.47 +
    1.48 +import net.java.html.BrwsrCtx;
    1.49 +
    1.50 +/** Super type for those who wish to receive JSON messages.
    1.51 + *
    1.52 + * @author Jaroslav Tulach <jtulach@netbeans.org>
    1.53 + */
    1.54 +public abstract class RcvrJSON {
    1.55 +    protected void onOpen(MsgEvnt msg) {}
    1.56 +    protected abstract void onMessage(MsgEvnt msg);
    1.57 +    protected void onClose(MsgEvnt msg) {}
    1.58 +    protected abstract void onError(MsgEvnt msg);
    1.59 +    
    1.60 +    public abstract static class MsgEvnt {
    1.61 +        MsgEvnt() {
    1.62 +        }
    1.63 +        
    1.64 +        public Throwable getError() {
    1.65 +            return null;
    1.66 +        }
    1.67 +        
    1.68 +        public final Exception getException() {
    1.69 +            Throwable t = getError();
    1.70 +            if (t instanceof Exception) {
    1.71 +                return (Exception)t;
    1.72 +            }
    1.73 +            if (t == null) {
    1.74 +                return null;
    1.75 +            }
    1.76 +            return new Exception(t);
    1.77 +        }
    1.78 +        
    1.79 +        public int dataSize() {
    1.80 +            return -1;
    1.81 +        }
    1.82 +        
    1.83 +        public <Data> void dataRead(BrwsrCtx ctx, Class<? extends Data> type, Data[] fillTheArray) {
    1.84 +        }
    1.85 +
    1.86 +        public abstract void dispatch(RcvrJSON r);
    1.87 +        
    1.88 +        public static MsgEvnt createError(final Throwable t) {
    1.89 +            return new MsgEvnt() {
    1.90 +                @Override
    1.91 +                public Throwable getError() {
    1.92 +                    return t;
    1.93 +                }
    1.94 +
    1.95 +                @Override
    1.96 +                public void dispatch(RcvrJSON r) {
    1.97 +                    r.onError(this);
    1.98 +                }
    1.99 +            };
   1.100 +        }
   1.101 +        
   1.102 +        public static MsgEvnt createMessage(final Object value) {
   1.103 +            return new MsgEvnt() {
   1.104 +                @Override
   1.105 +                public int dataSize() {
   1.106 +                    if (value instanceof Object[]) {
   1.107 +                        return ((Object[])value).length;
   1.108 +                    } else {
   1.109 +                        return 1;
   1.110 +                    }
   1.111 +                }
   1.112 +                
   1.113 +                @Override
   1.114 +                public <Data> void dataRead(BrwsrCtx context, Class<? extends Data> type, Data[] arr) {
   1.115 +                    if (value instanceof Object[]) {
   1.116 +                        Object[] data = ((Object[]) value);
   1.117 +                        for (int i = 0; i < data.length && i < arr.length; i++) {
   1.118 +                            arr[i] = org.netbeans.html.json.impl.JSON.read(context, type, data[i]);
   1.119 +                        }
   1.120 +                    } else {
   1.121 +                        if (arr.length > 0) {
   1.122 +                            arr[0] = org.netbeans.html.json.impl.JSON.read(context, type, value);
   1.123 +                        }
   1.124 +                    }
   1.125 +                }
   1.126 +                
   1.127 +                @Override
   1.128 +                public void dispatch(RcvrJSON r) {
   1.129 +                    r.onMessage(this);
   1.130 +                }
   1.131 +            };
   1.132 +        }
   1.133 +        
   1.134 +        public static MsgEvnt createOpen() {
   1.135 +            return new MsgEvnt() {
   1.136 +                @Override
   1.137 +                public void dispatch(RcvrJSON r) {
   1.138 +                    r.onOpen(this);
   1.139 +                }
   1.140 +            };
   1.141 +        }
   1.142 +
   1.143 +        public static MsgEvnt createClose() {
   1.144 +            return new MsgEvnt() {
   1.145 +                @Override
   1.146 +                public void dispatch(RcvrJSON r) {
   1.147 +                    r.onClose(this);
   1.148 +                }
   1.149 +            };
   1.150 +        }
   1.151 +    } // end MsgEvnt
   1.152 +}