Java tutorial
/* * JSON-RPC-Java - a JSON-RPC to Java Bridge with dynamic invocation * * $Id: ArraySerializer.java,v 1.5.2.2 2006/03/06 12:39:21 mclark Exp $ * * Copyright Metaparadigm Pte. Ltd. 2004. * Michael Clark <michael@metaparadigm.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 com.metaparadigm.jsonrpc; import java.lang.reflect.Array; import org.json.JSONArray; import org.json.JSONException; public class ArraySerializer extends AbstractSerializer { private final static long serialVersionUID = 1; private static Class[] _serializableClasses = new Class[] { int[].class, short[].class, long[].class, float[].class, double[].class, boolean[].class, Integer[].class, Short[].class, Long[].class, Float[].class, Double[].class, Boolean[].class, String[].class }; private static Class[] _JSONClasses = new Class[] { JSONArray.class }; public Class[] getSerializableClasses() { return _serializableClasses; } public Class[] getJSONClasses() { return _JSONClasses; } @Override public boolean canSerialize(Class clazz, Class jsonClazz) { Class cc = clazz.getComponentType(); return (super.canSerialize(clazz, jsonClazz) || ((jsonClazz == null || jsonClazz == JSONArray.class) && (clazz.isArray() && !cc.isPrimitive()))); } public ObjectMatch tryUnmarshall(SerializerState state, Class clazz, Object o) throws UnmarshallException { JSONArray jso = (JSONArray) o; Class cc = clazz.getComponentType(); int i = 0; ObjectMatch m = new ObjectMatch(-1); try { for (; i < jso.length(); i++) m = ser.tryUnmarshall(state, cc, jso.get(i)).max(m); } catch (UnmarshallException e) { throw new UnmarshallException("element " + i + " " + e.getMessage()); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } return m; } public Object unmarshall(SerializerState state, Class clazz, Object o) throws UnmarshallException { JSONArray jso = (JSONArray) o; Class cc = clazz.getComponentType(); int i = 0; try { if (clazz == int[].class) { int arr[] = new int[jso.length()]; for (; i < jso.length(); i++) arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).intValue(); return arr; } else if (clazz == byte[].class) { byte arr[] = new byte[jso.length()]; for (; i < jso.length(); i++) arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).byteValue(); return arr; } else if (clazz == short[].class) { short arr[] = new short[jso.length()]; for (; i < jso.length(); i++) arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).shortValue(); return arr; } else if (clazz == long[].class) { long arr[] = new long[jso.length()]; for (; i < jso.length(); i++) arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).longValue(); return arr; } else if (clazz == float[].class) { float arr[] = new float[jso.length()]; for (; i < jso.length(); i++) arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).floatValue(); return arr; } else if (clazz == double[].class) { double arr[] = new double[jso.length()]; for (; i < jso.length(); i++) arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).doubleValue(); return arr; } else if (clazz == char[].class) { char arr[] = new char[jso.length()]; for (; i < jso.length(); i++) arr[i] = ((String) ser.unmarshall(state, cc, jso.get(i))).charAt(0); return arr; } else if (clazz == boolean[].class) { boolean arr[] = new boolean[jso.length()]; for (; i < jso.length(); i++) arr[i] = ((Boolean) ser.unmarshall(state, cc, jso.get(i))).booleanValue(); return arr; } else { Object arr[] = (Object[]) Array.newInstance(clazz.getComponentType(), jso.length()); for (; i < jso.length(); i++) arr[i] = ser.unmarshall(state, cc, jso.get(i)); return arr; } } catch (UnmarshallException e) { throw new UnmarshallException("element " + i + " " + e.getMessage()); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } } public Object marshall(SerializerState state, Object o) throws MarshallException { JSONArray arr = new JSONArray(); if (o instanceof int[]) { int a[] = (int[]) o; for (int i = 0; i < a.length; i++) arr.put(a[i]); } else if (o instanceof long[]) { long a[] = (long[]) o; for (int i = 0; i < a.length; i++) arr.put(a[i]); } else if (o instanceof short[]) { short a[] = (short[]) o; for (int i = 0; i < a.length; i++) arr.put(a[i]); } else if (o instanceof byte[]) { byte a[] = (byte[]) o; for (int i = 0; i < a.length; i++) arr.put(a[i]); } else if (o instanceof float[]) { float a[] = (float[]) o; for (int i = 0; i < a.length; i++) try { arr.put(a[i]); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } else if (o instanceof double[]) { double a[] = (double[]) o; for (int i = 0; i < a.length; i++) try { arr.put(a[i]); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } else if (o instanceof char[]) { char a[] = (char[]) o; for (int i = 0; i < a.length; i++) arr.put(a[i]); } else if (o instanceof boolean[]) { boolean a[] = (boolean[]) o; for (int i = 0; i < a.length; i++) arr.put(a[i]); } else if (o instanceof Object[]) { Object a[] = (Object[]) o; for (int i = 0; i < a.length; i++) arr.put(ser.marshall(state, a[i])); } return arr; } }