/*******************************************************************************
* Copyright (c) 2015 Frank Becker and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Frank Becker - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.bugzilla.rest.core;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Type;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.Map.Entry;
import java.util.TimeZone;
import org.apache.http.HttpStatus;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.mylyn.commons.core.operations.IOperationMonitor;
import org.eclipse.mylyn.commons.repositories.http.core.CommonHttpClient;
import org.eclipse.mylyn.commons.repositories.http.core.CommonHttpResponse;
import org.eclipse.mylyn.commons.repositories.http.core.HttpUtil;
import org.eclipse.mylyn.tasks.core.TaskRepository;
import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
import org.eclipse.mylyn.tasks.core.data.TaskAttributeMapper;
import org.eclipse.mylyn.tasks.core.data.TaskData;
import org.eclipse.osgi.util.NLS;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonArray;
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.reflect.TypeToken;
public class BugzillaRestGetTaskData extends BugzillaRestGetRequest<List<TaskData>> {
private final TaskRepository taskRepository;
private final BugzillaRestConnector connector;
public BugzillaRestGetTaskData(CommonHttpClient client, BugzillaRestConnector connector, String urlSuffix,
TaskRepository taskRepository) {
super(client, "/bug?" + urlSuffix, null); //$NON-NLS-1$
this.taskRepository = taskRepository;
this.connector = connector;
}
@Override
protected List<TaskData> parseFromJson(InputStreamReader in) throws BugzillaRestException {
TypeToken<List<TaskData>> type = new TypeToken<List<TaskData>>() {
};
return new GsonBuilder().registerTypeAdapter(type.getType(), new JSonTaskDataDeserializer())
.create()
.fromJson(in, type.getType());
}
@Override
protected List<TaskData> doProcess(CommonHttpResponse response, IOperationMonitor monitor)
throws IOException, BugzillaRestException {
InputStream is = response.getResponseEntityAsStream();
InputStreamReader in = new InputStreamReader(is);
return parseFromJson(in);
}
@Override
protected void doValidate(CommonHttpResponse response, IOperationMonitor monitor)
throws IOException, BugzillaRestException {
int statusCode = response.getStatusCode();
if (statusCode != 400 && statusCode != 200) {
if (statusCode == HttpStatus.SC_NOT_FOUND) {
throw new BugzillaRestResourceNotFoundException(
NLS.bind("Requested resource ''{0}'' does not exist", response.getRequestPath()));
}
throw new BugzillaRestException(NLS.bind("Unexpected response from Bugzilla REST server for ''{0}'': {1}",
response.getRequestPath(), HttpUtil.getStatusText(statusCode)));
}
}
BugzillaRestTaskSchema taskSchema = BugzillaRestTaskSchema.getDefault();
private class JSonTaskDataDeserializer implements JsonDeserializer<ArrayList<TaskData>> {
@Override
public ArrayList<TaskData> deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
ArrayList<TaskData> response = new ArrayList<TaskData>();
BugzillaRestTaskDataHandler dataHandler = (BugzillaRestTaskDataHandler) connector.getTaskDataHandler();
TaskAttributeMapper mapper = dataHandler.getAttributeMapper(taskRepository);
for (JsonElement bug : json.getAsJsonObject().get("bugs").getAsJsonArray()) { //$NON-NLS-1$
JsonObject bugdata = bug.getAsJsonObject();
TaskData taskData = null;
Integer taskId = bugdata.get("id").getAsInt(); //$NON-NLS-1$
taskData = new TaskData(mapper, connector.getConnectorKind(), taskRepository.getRepositoryUrl(),
taskId.toString());
try {
dataHandler.initializeTaskData(taskRepository, taskData, null, null);
} catch (CoreException e) {
com.google.common.base.Throwables.propagate(e);
}
TaskAttribute idAttribute = taskData.getRoot().getAttribute(taskSchema.BUG_ID.getKey());
idAttribute.setValue(taskId.toString());
response.add(taskData);
for (Entry<String, JsonElement> entry : bugdata.entrySet()) {
String attributeId = BugzillaRestTaskSchema.getAttributeNameFromFieldName(entry.getKey());
if (entry.getKey().equals("assigned_to_detail")) { //$NON-NLS-1$
TaskAttribute attribute = taskData.getRoot().getAttribute(taskSchema.ASSIGNED_TO.getKey());
if (attribute != null) {
JsonElement value = entry.getValue().getAsJsonObject().get("email"); //$NON-NLS-1$
if (value != null) {
attribute.setValue(value.getAsString());
} else {
value = entry.getValue().getAsJsonObject().get("name"); //$NON-NLS-1$
if (value != null) {
attribute.setValue(value.getAsString());
}
}
}
continue;
} else if (entry.getKey().equals("last_change_time")) { //$NON-NLS-1$
TaskAttribute attribute = taskData.getRoot()
.getAttribute(taskSchema.DATE_MODIFICATION.getKey());
JsonElement value = entry.getValue(); //.get("real_name");
if (attribute != null) {
try {
SimpleDateFormat iso8601Format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", //$NON-NLS-1$
Locale.US);
iso8601Format.setTimeZone(TimeZone.getTimeZone("UTC")); //$NON-NLS-1$
Date tempDate = iso8601Format.parse(value.getAsString());
attribute.setValue(Long.toString(tempDate.getTime()));
continue;
} catch (ParseException e) {
com.google.common.base.Throwables.propagate(
new CoreException(new Status(IStatus.ERROR, BugzillaRestCore.ID_PLUGIN,
"Can not parse Date (" + value.getAsString() + ")"))); //$NON-NLS-1$ //$NON-NLS-2$
}
}
} else if (entry.getKey().equals("flags")) { //$NON-NLS-1$
JsonArray array = entry.getValue().getAsJsonArray();
if (!array.isJsonNull()) {
for (JsonElement jsonElement : array) {
BugzillaRestFlagMapper flagMapper = new Gson().fromJson(jsonElement,
BugzillaRestFlagMapper.class);
TaskAttribute attribute = taskData.getRoot()
.createAttribute(IBugzillaRestConstants.KIND_FLAG + flagMapper.getNumber());
flagMapper.applyTo(attribute);
}
}
}
TaskAttribute attribute = taskData.getRoot().getAttribute(attributeId);
if (attribute != null) {
JsonElement value = entry.getValue();
if (!value.isJsonNull()) {
if (value.isJsonArray()) {
JsonArray valueArray = value.getAsJsonArray();
attribute.clearValues();
for (JsonElement jsonElement : valueArray) {
attribute.addValue(jsonElement.getAsString());
}
} else {
attribute.setValue(entry.getValue().getAsString());
}
}
}
}
BugzillaRestConfiguration config;
try {
config = connector.getRepositoryConfiguration(taskRepository);
if (config != null) {
config.addValidOperations(taskData);
}
} catch (CoreException e) {
com.google.common.base.Throwables.propagate(e);
}
}
return response;
}
}
}