Java tutorial
/** * ClarescoExperienceAPI * Copyright * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * Please contact Claresco, www.claresco.com, if you have any questions. **/ package com.claresco.tinman.json; import java.lang.reflect.Type; import com.claresco.tinman.lrs.XapiAccount; import com.claresco.tinman.lrs.XapiInverseFunctionalIdentifier; import com.google.gson.JsonDeserializationContext; import com.google.gson.JsonDeserializer; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.google.gson.JsonParseException; import com.google.gson.JsonSerializationContext; import com.google.gson.JsonSerializer; /** * XapiInverseFuncIdDeserializer.java * * * * * * @author rheza * on Jan 22, 2014 * */ public class XapiInverseFuncIdJson implements JsonDeserializer<XapiInverseFunctionalIdentifier>, JsonSerializer<XapiInverseFunctionalIdentifier> { /* (non-Javadoc) * @see com.google.gson.JsonSerializer#serialize(java.lang.Object, java.lang.reflect.Type, com.google.gson.JsonSerializationContext) */ @Override public JsonElement serialize(XapiInverseFunctionalIdentifier arg0, Type arg1, JsonSerializationContext arg2) { JsonObject result = new JsonObject(); if (arg0.hasMbox()) { result.addProperty("mbox", arg0.getMbox().toString()); } result.addProperty("mbox_sha1sum", arg0.getMboxSha1Sum()); if (arg0.hasOpenId()) { result.addProperty("openid", arg0.getOpenId().toString()); } result.add("account", arg2.serialize(arg0.getAccount())); return result; } /* (non-Javadoc) * @see com.google.gson.JsonDeserializer#deserialize(com.google.gson.JsonElement, java.lang.reflect.Type, com.google.gson.JsonDeserializationContext) */ @Override public XapiInverseFunctionalIdentifier deserialize(JsonElement arg0, Type arg1, JsonDeserializationContext arg2) throws JsonParseException { JsonObject localStatementPiece = JsonUtility.convertJsonElementToJsonObject(arg0); // Retrieve the elements that will construct the identifier String theEmailAddress = JsonUtility.getElementAsString(localStatementPiece, "mbox"); String theOpenId = JsonUtility.getElementAsString(localStatementPiece, "openid"); String theSha1Sum = JsonUtility.getElementAsString(localStatementPiece, "mbox_sha1sum"); XapiAccount theAccount = JsonUtility.delegateDeserialization(arg2, localStatementPiece.get("account"), XapiAccount.class); if (theEmailAddress != null) { if (!theEmailAddress.startsWith("mailto:")) { throw new XapiBadIdentifierException("The mbox must start with \'mailto:\'"); } } XapiInverseFunctionalIdentifier theIdentifier = new XapiInverseFunctionalIdentifier(theEmailAddress, theSha1Sum, theOpenId, theAccount); // If every field in the identifier is null, return null instead if (theIdentifier.isEmpty()) { return null; } // There are two types of identifier if (!theIdentifier.isValid()) { throw new XapiBadIdentifierException(); } // Return a new function identifier return theIdentifier; } }