/*
* Copyright 2010-2011 bufferings[at]gmail.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 bufferings.ktr.wjr.client.service;
import static bufferings.ktr.wjr.shared.util.WjrParamKey.*;
import static com.google.gwt.http.client.RequestBuilder.*;
import java.util.ArrayList;
import java.util.List;
import bufferings.ktr.wjr.shared.model.WjrClassItem;
import bufferings.ktr.wjr.shared.model.WjrConfig;
import bufferings.ktr.wjr.shared.model.WjrMethodItem;
import bufferings.ktr.wjr.shared.model.WjrStore;
import bufferings.ktr.wjr.shared.model.WjrStoreItem.State;
import bufferings.ktr.wjr.shared.model.meta.WjrClassItemMeta;
import bufferings.ktr.wjr.shared.model.meta.WjrConfigMeta;
import bufferings.ktr.wjr.shared.model.meta.WjrMethodItemMeta;
import bufferings.ktr.wjr.shared.model.meta.WjrStoreMeta;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.http.client.URL;
import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONValue;
import com.google.gwt.user.client.rpc.AsyncCallback;
/**
* The service using Json.
*
* @author bufferings[at]gmail.com
*/
public class KtrWjrJsonServiceAsync implements KtrWjrServiceAsync {
/**
* Name and Value Pair
*
* @author bufferings[at]gmail.com
*/
static class Pair {
/**
* The name.
*/
public final String name;
/**
* The value.
*/
public final String value;
/**
* Init with params.
*
* @param name
* the name.
* @param value
* the value.
*/
public Pair(String name, String value) {
this.name = name;
this.value = value;
}
}
/**
* The url of json servlet.
*/
static final String JSON_SERVLET_URL = "/ktrwjr/ktrwjr/ktrwjr.s3gwt";
/**
* The header of a content type.
*/
static final String CONTENT_TYPE_HEADER = "Content-Type";
/**
* The x-www-form-urlencoded of a content type.
*/
static final String CONTENT_TYPE_X_WWW_FORM_URLENCODED =
"application/x-www-form-urlencoded; charset=utf-8";
/**
* The separator of parameter.
*/
static final String PARAMETER_SEPARATOR = "&";
/**
* The separator of name and value.
*/
static final String NAME_VALUE_SEPARATOR = "=";
/**
* {@inheritDoc}
*/
public void loadConfig(String configId,
final AsyncCallback<WjrConfig> callback) {
final List<Pair> params = new ArrayList<Pair>();
params.add(new Pair(KEY_METHOD, METHOD_LOAD_CONFIG));
params.add(new Pair(KEY_CONFIG_ID, configId));
try {
sendRequest(params, new RequestCallback() {
public void onError(Request request, Throwable exception) {
callback.onFailure(exception);
}
public void onResponseReceived(Request request, Response response) {
try {
callback.onSuccess(createWjrConfigFromJson(response.getText()));
} catch (Exception e) {
callback.onFailure(e);
}
}
});
} catch (RequestException e) {
callback.onFailure(e);
}
}
/**
* {@inheritDoc}
*/
public void loadStore(final AsyncCallback<WjrStore> callback) {
final List<Pair> params = new ArrayList<Pair>();
params.add(new Pair(KEY_METHOD, METHOD_LOAD_STORE));
try {
sendRequest(params, new RequestCallback() {
public void onError(Request request, Throwable exception) {
callback.onFailure(exception);
}
public void onResponseReceived(Request request, Response response) {
try {
callback.onSuccess(createWjrStoreFromJson(response.getText()));
} catch (Exception e) {
callback.onFailure(e);
}
}
});
} catch (RequestException e) {
callback.onFailure(e);
}
}
/**
* {@inheritDoc}
*/
public void runTest(WjrMethodItem methodItem, boolean cpumsEnabled,
boolean apimsEnabled, boolean logHookEnabled, String logHookTimezone,
final AsyncCallback<WjrMethodItem> callback) {
final List<Pair> params = new ArrayList<Pair>();
params.add(new Pair(KEY_METHOD, METHOD_RUN_TEST));
params.add(new Pair(KEY_RUN_CLASS_NAME, methodItem.getClassName()));
params.add(new Pair(KEY_RUN_METHOD_NAME, methodItem.getMethodName()));
params.add(new Pair(KEY_CPUMS_ENABLED, Boolean.toString(cpumsEnabled)));
params.add(new Pair(KEY_APIMS_ENABLED, Boolean.toString(apimsEnabled)));
params.add(new Pair(KEY_LOGHOOK_ENABLED, Boolean.toString(logHookEnabled)));
params.add(new Pair(KEY_LOGHOOK_TIMEZONE, logHookTimezone));
try {
sendRequest(params, new RequestCallback() {
public void onError(Request request, Throwable exception) {
callback.onFailure(exception);
}
public void onResponseReceived(Request request, Response response) {
try {
callback.onSuccess(createWjrMethodItemFromJson(response.getText()));
} catch (Exception e) {
callback.onFailure(e);
}
}
});
} catch (RequestException e) {
callback.onFailure(e);
}
}
/**
* Sends a request to the ktrwjr servlet.
*
* @param params
* the parameters.
* @param callback
* the callback.
* @throws RequestException
* thrown when the error occured.
*/
void sendRequest(List<Pair> params, RequestCallback callback)
throws RequestException {
RequestBuilder builder = new RequestBuilder(POST, JSON_SERVLET_URL);
builder.setHeader(CONTENT_TYPE_HEADER, CONTENT_TYPE_X_WWW_FORM_URLENCODED);
builder.sendRequest(format(params), callback);
}
/**
* Returns a String that is suitable for use as an
* <code>application/x-www-form-urlencoded</code> list of parameters in an
* HTTP PUT or HTTP POST.
*
* @param parameters
* The parameters to include.
* @param encoding
* The encoding to use.
*/
String format(List<Pair> parameters) {
final StringBuilder result = new StringBuilder();
for (final Pair parameter : parameters) {
String encodedName = URL.encode(parameter.name);
String encodedValue =
parameter.value != null ? URL.encode(parameter.value) : "";
if (result.length() > 0) {
result.append(PARAMETER_SEPARATOR);
}
result.append(encodedName);
result.append(NAME_VALUE_SEPARATOR);
result.append(encodedValue);
}
return result.toString();
}
/**
* Creates a WjrConfig from Json string.
*
* @param jsonString
* the Json string.
* @return the created WjrConfig instance.
*/
WjrConfig createWjrConfigFromJson(String jsonString) {
WjrConfigMeta m = WjrConfigMeta.meta();
WjrConfig wjrConfig = new WjrConfig();
JSONObject j = JSONParser.parseStrict(jsonString).isObject();
wjrConfig.setConfigId(j.get(m.configId).isString().stringValue());
wjrConfig.setConfigName(j.get(m.configName).isString().stringValue());
wjrConfig.setCpumsEnabled(j.get(m.cpumsEnabled).isString().stringValue());
wjrConfig.setApimsEnabled(j.get(m.apimsEnabled).isString().stringValue());
wjrConfig.setLogHookEnabled(j
.get(m.logHookEnabled)
.isString()
.stringValue());
wjrConfig.setLogHookTimezone(j
.get(m.logHookTimezone)
.isString()
.stringValue());
wjrConfig.setRetryOverQuotaEnabled(j
.get(m.retryOverQuotaEnabled)
.isString()
.stringValue());
wjrConfig.setRetryOverQuotaInterval(j
.get(m.retryOverQuotaInterval)
.isString()
.stringValue());
wjrConfig.setRetryOverQuotaMaxCount(j
.get(m.retryOverQuotaMaxCount)
.isString()
.stringValue());
return wjrConfig;
}
/**
* Creates a WjrStore from Json string.
*
* @param jsonString
* the Json string.
* @return the created WjrStore instance.
*/
WjrStore createWjrStoreFromJson(String jsonString) {
WjrStoreMeta m = WjrStoreMeta.meta();
WjrStore wjrStore = new WjrStore();
JSONObject j = JSONParser.parseStrict(jsonString).isObject();
JSONArray classItems = j.get(m.classItems).isArray();
int classItemsSize = classItems.size();
for (int i = 0; i < classItemsSize; i++) {
wjrStore.addClassItem(createWjrClassItemFromJson(classItems
.get(i)
.toString()));
}
JSONArray methodItems = j.get(m.methodItems).isArray();
int methodItemsSize = methodItems.size();
for (int i = 0; i < methodItemsSize; i++) {
wjrStore.addMethodItem(createWjrMethodItemFromJson(methodItems
.get(i)
.toString()));
}
return wjrStore;
}
/**
* Creates a WjrClassItem from Json string.
*
* @param jsonString
* the Json string.
* @return the created WjrClassItem instance.
*/
WjrClassItem createWjrClassItemFromJson(String jsonString) {
WjrClassItemMeta m = WjrClassItemMeta.meta();
JSONValue j = JSONParser.parseStrict(jsonString);
return new WjrClassItem(j
.isObject()
.get(m.className)
.isString()
.stringValue());
}
/**
* Creates a WjrMethodItem from Json string.
*
* @param jsonString
* the Json string.
* @return the created WjrMethodItem instance.
*/
WjrMethodItem createWjrMethodItemFromJson(String jsonString) {
WjrMethodItemMeta m = WjrMethodItemMeta.meta();
JSONObject j = JSONParser.parseStrict(jsonString).isObject();
String className = j.get(m.className).isString().stringValue();
String methodName = j.get(m.methodName).isString().stringValue();
WjrMethodItem wjrMethodItem = new WjrMethodItem(className, methodName);
wjrMethodItem.setTrace(j.get(m.trace).isString().stringValue());
wjrMethodItem.setLog(j.get(m.log).isString().stringValue());
wjrMethodItem.setTime(j.get(m.time).isString().stringValue());
wjrMethodItem.setCpuTime(j.get(m.cpuTime).isString().stringValue());
wjrMethodItem.setApiTime(j.get(m.apiTime).isString().stringValue());
wjrMethodItem.setOverQuota(j.get(m.isOverQuota).isBoolean().booleanValue());
wjrMethodItem.setRetryCount(new Integer(j
.get(m.retryCount)
.isNumber()
.toString()));
wjrMethodItem.setMaxRetryCount(new Integer(j
.get(m.maxRetryCount)
.isNumber()
.toString()));
wjrMethodItem.setWaitingSeconds(new Integer(j
.get(m.waitingSeconds)
.isNumber()
.toString()));
wjrMethodItem.setState(State.valueOf(j
.get(m.state)
.isString()
.stringValue()));
return wjrMethodItem;
}
}