me.chanjar.weixin.cp.api.WxCpServiceImpl Maven / Gradle / Ivy
package me.chanjar.weixin.cp.api;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.math.BigDecimal;
import java.security.NoSuchAlgorithmException;
import java.util.List;
import java.util.UUID;
import me.chanjar.weixin.common.bean.WxAccessToken;
import me.chanjar.weixin.common.bean.WxJsapiSignature;
import me.chanjar.weixin.common.bean.WxMenu;
import me.chanjar.weixin.common.bean.result.WxError;
import me.chanjar.weixin.common.bean.result.WxMediaUploadResult;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.common.session.StandardSessionManager;
import me.chanjar.weixin.common.session.WxSession;
import me.chanjar.weixin.common.session.WxSessionManager;
import me.chanjar.weixin.common.util.RandomUtils;
import me.chanjar.weixin.common.util.StringUtils;
import me.chanjar.weixin.common.util.crypto.SHA1;
import me.chanjar.weixin.common.util.fs.FileUtils;
import me.chanjar.weixin.common.util.http.MediaDownloadRequestExecutor;
import me.chanjar.weixin.common.util.http.MediaUploadRequestExecutor;
import me.chanjar.weixin.common.util.http.RequestExecutor;
import me.chanjar.weixin.common.util.http.SimpleGetRequestExecutor;
import me.chanjar.weixin.common.util.http.SimplePostRequestExecutor;
import me.chanjar.weixin.common.util.http.URIUtil;
import me.chanjar.weixin.common.util.json.GsonHelper;
import me.chanjar.weixin.cp.bean.WxCpDepart;
import me.chanjar.weixin.cp.bean.WxCpMessage;
import me.chanjar.weixin.cp.bean.WxCpTag;
import me.chanjar.weixin.cp.bean.WxCpUser;
import me.chanjar.weixin.cp.util.json.WxCpGsonBuilder;
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import com.google.gson.internal.Streams;
import com.google.gson.reflect.TypeToken;
import com.google.gson.stream.JsonReader;
public class WxCpServiceImpl implements WxCpService {
protected final Logger log = LoggerFactory.getLogger(WxCpServiceImpl.class);
/**
* 全局的是否正在刷新access token的锁
*/
protected final Object globalAccessTokenRefreshLock = new Object();
/**
* 全局的是否正在刷新jsapi_ticket的锁
*/
protected final Object globalJsapiTicketRefreshLock = new Object();
protected WxCpConfigStorage wxCpConfigStorage;
protected CloseableHttpClient httpClient;
protected HttpHost httpProxy;
private int retrySleepMillis = 1000;
private int maxRetryTimes = 5;
protected WxSessionManager sessionManager = new StandardSessionManager();
/**
* 临时文件目录
*/
protected File tmpDirFile;
public boolean checkSignature(String msgSignature, String timestamp, String nonce, String data) {
try {
return SHA1.gen(wxCpConfigStorage.getToken(), timestamp, nonce, data).equals(msgSignature);
} catch (Exception e) {
return false;
}
}
public void userAuthenticated(String userId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/authsucc?userid=" + userId;
get(url, null);
}
public String getAccessToken() throws WxErrorException {
return getAccessToken(false);
}
public String getAccessToken(boolean forceRefresh) throws WxErrorException {
if (forceRefresh) {
wxCpConfigStorage.expireAccessToken();
}
if (wxCpConfigStorage.isAccessTokenExpired()) {
synchronized (globalAccessTokenRefreshLock) {
if (wxCpConfigStorage.isAccessTokenExpired()) {
String url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?"
+ "&corpid=" + wxCpConfigStorage.getCorpId()
+ "&corpsecret=" + wxCpConfigStorage.getCorpSecret();
try {
HttpGet httpGet = new HttpGet(url);
if (httpProxy != null) {
RequestConfig config = RequestConfig.custom().setProxy(httpProxy).build();
httpGet.setConfig(config);
}
CloseableHttpClient httpclient = getHttpclient();
String resultContent = null;
try (CloseableHttpResponse response = httpclient.execute(httpGet)) {
resultContent = new BasicResponseHandler().handleResponse(response);
}
WxError error = WxError.fromJson(resultContent);
if (error.getErrorCode() != 0) {
throw new WxErrorException(error);
}
WxAccessToken accessToken = WxAccessToken.fromJson(resultContent);
wxCpConfigStorage.updateAccessToken(accessToken.getAccessToken(), accessToken.getExpiresIn());
} catch (ClientProtocolException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
}
return wxCpConfigStorage.getAccessToken();
}
public String getJsapiTicket() throws WxErrorException {
return getJsapiTicket(false);
}
public String getJsapiTicket(boolean forceRefresh) throws WxErrorException {
if (forceRefresh) {
wxCpConfigStorage.expireJsapiTicket();
}
if (wxCpConfigStorage.isJsapiTicketExpired()) {
synchronized (globalJsapiTicketRefreshLock) {
if (wxCpConfigStorage.isJsapiTicketExpired()) {
String url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket";
String responseContent = execute(new SimpleGetRequestExecutor(), url, null);
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
JsonObject tmpJsonObject = tmpJsonElement.getAsJsonObject();
String jsapiTicket = tmpJsonObject.get("ticket").getAsString();
int expiresInSeconds = tmpJsonObject.get("expires_in").getAsInt();
wxCpConfigStorage.updateJsapiTicket(jsapiTicket, expiresInSeconds);
}
}
}
return wxCpConfigStorage.getJsapiTicket();
}
public WxJsapiSignature createJsapiSignature(String url) throws WxErrorException {
long timestamp = System.currentTimeMillis() / 1000;
String noncestr = RandomUtils.getRandomStr();
String jsapiTicket = getJsapiTicket(false);
try {
String signature = SHA1.genWithAmple(
"jsapi_ticket=" + jsapiTicket,
"noncestr=" + noncestr,
"timestamp=" + timestamp,
"url=" + url
);
WxJsapiSignature jsapiSignature = new WxJsapiSignature();
jsapiSignature.setTimestamp(timestamp);
jsapiSignature.setNoncestr(noncestr);
jsapiSignature.setUrl(url);
jsapiSignature.setSignature(signature);
return jsapiSignature;
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}
}
public void messageSend(WxCpMessage message) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/message/send";
post(url, message.toJson());
}
@Override
public void menuCreate(WxMenu menu) throws WxErrorException {
menuCreate(wxCpConfigStorage.getAgentId(), menu);
}
@Override
public void menuCreate(String agentId, WxMenu menu) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/menu/create?agentid=" + wxCpConfigStorage.getAgentId();
post(url, menu.toJson());
}
@Override
public void menuDelete() throws WxErrorException {
menuDelete(wxCpConfigStorage.getAgentId());
}
@Override
public void menuDelete(String agentId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/menu/delete?agentid=" + agentId;
get(url, null);
}
@Override
public WxMenu menuGet() throws WxErrorException {
return menuGet(wxCpConfigStorage.getAgentId());
}
@Override
public WxMenu menuGet(String agentId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/menu/get?agentid=" + agentId;
try {
String resultContent = get(url, null);
return WxMenu.fromJson(resultContent);
} catch (WxErrorException e) {
// 46003 不存在的菜单数据
if (e.getError().getErrorCode() == 46003) {
return null;
}
throw e;
}
}
public WxMediaUploadResult mediaUpload(String mediaType, String fileType, InputStream inputStream)
throws WxErrorException, IOException {
return mediaUpload(mediaType, FileUtils.createTmpFile(inputStream, UUID.randomUUID().toString(), fileType));
}
public WxMediaUploadResult mediaUpload(String mediaType, File file) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/media/upload?type=" + mediaType;
return execute(new MediaUploadRequestExecutor(), url, file);
}
public File mediaDownload(String media_id) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/media/get";
return execute(new MediaDownloadRequestExecutor(wxCpConfigStorage.getTmpDirFile()), url, "media_id=" + media_id);
}
public Integer departCreate(WxCpDepart depart) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/department/create";
String responseContent = execute(
new SimplePostRequestExecutor(),
url,
depart.toJson());
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
return GsonHelper.getAsInteger(tmpJsonElement.getAsJsonObject().get("id"));
}
public void departUpdate(WxCpDepart group) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/department/update";
post(url, group.toJson());
}
public void departDelete(Integer departId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/department/delete?id=" + departId;
get(url, null);
}
public List departGet() throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/department/list";
String responseContent = get(url, null);
/*
* 操蛋的微信API，创建时返回的是 { group : { id : ..., name : ...} }
* 查询时返回的是 { groups : [ { id : ..., name : ..., count : ... }, ... ] }
*/
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
return WxCpGsonBuilder.INSTANCE.create()
.fromJson(
tmpJsonElement.getAsJsonObject().get("department"),
new TypeToken>() {
}.getType()
);
}
@Override
public void userCreate(WxCpUser user) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/create";
post(url, user.toJson());
}
@Override
public void userUpdate(WxCpUser user) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/update";
post(url, user.toJson());
}
@Override
public void userDelete(String userid) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/delete?userid=" + userid;
get(url, null);
}
@Override
public void userDelete(String[] userids) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/batchdelete";
JsonObject jsonObject = new JsonObject();
JsonArray jsonArray = new JsonArray();
for (int i = 0; i < userids.length; i++) {
jsonArray.add(new JsonPrimitive(userids[i]));
}
jsonObject.add("useridlist", jsonArray);
post(url, jsonObject.toString());
}
@Override
public WxCpUser userGet(String userid) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/get?userid=" + userid;
String responseContent = get(url, null);
return WxCpUser.fromJson(responseContent);
}
@Override
public List userList(Integer departId, Boolean fetchChild, Integer status) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/list?department_id=" + departId;
String params = "";
if (fetchChild != null) {
params += "&fetch_child=" + (fetchChild ? "1" : "0");
}
if (status != null) {
params += "&status=" + status;
} else {
params += "&status=0";
}
String responseContent = get(url, params);
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
return WxCpGsonBuilder.INSTANCE.create()
.fromJson(
tmpJsonElement.getAsJsonObject().get("userlist"),
new TypeToken>() { }.getType()
);
}
@Override
public List departGetUsers(Integer departId, Boolean fetchChild, Integer status) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/simplelist?department_id=" + departId;
String params = "";
if (fetchChild != null) {
params += "&fetch_child=" + (fetchChild ? "1" : "0");
}
if (status != null) {
params += "&status=" + status;
} else {
params += "&status=0";
}
String responseContent = get(url, params);
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
return WxCpGsonBuilder.INSTANCE.create()
.fromJson(
tmpJsonElement.getAsJsonObject().get("userlist"),
new TypeToken>() { }.getType()
);
}
@Override
public String tagCreate(String tagName) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/tag/create";
JsonObject o = new JsonObject();
o.addProperty("tagname", tagName);
String responseContent = post(url, o.toString());
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
return tmpJsonElement.getAsJsonObject().get("tagid").getAsString();
}
@Override
public void tagUpdate(String tagId, String tagName) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/tag/update";
JsonObject o = new JsonObject();
o.addProperty("tagid", tagId);
o.addProperty("tagname", tagName);
post(url, o.toString());
}
@Override
public void tagDelete(String tagId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/tag/delete?tagid=" + tagId;
get(url, null);
}
@Override
public List tagGet() throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/tag/list";
String responseContent = get(url, null);
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
return WxCpGsonBuilder.INSTANCE.create()
.fromJson(
tmpJsonElement.getAsJsonObject().get("taglist"),
new TypeToken>() {
}.getType()
);
}
@Override
public List tagGetUsers(String tagId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/tag/get?tagid=" + tagId;
String responseContent = get(url, null);
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
return WxCpGsonBuilder.INSTANCE.create()
.fromJson(
tmpJsonElement.getAsJsonObject().get("userlist"),
new TypeToken>() { }.getType()
);
}
@Override
public void tagAddUsers(String tagId, List userIds, List partyIds) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/tag/addtagusers";
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("tagid", tagId);
if (userIds != null) {
JsonArray jsonArray = new JsonArray();
for (String userId : userIds) {
jsonArray.add(new JsonPrimitive(userId));
}
jsonObject.add("userlist", jsonArray);
}
if (partyIds != null) {
JsonArray jsonArray = new JsonArray();
for (String userId : partyIds) {
jsonArray.add(new JsonPrimitive(userId));
}
jsonObject.add("partylist", jsonArray);
}
post(url, jsonObject.toString());
}
@Override
public void tagRemoveUsers(String tagId, List userIds) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/tag/deltagusers";
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("tagid", tagId);
JsonArray jsonArray = new JsonArray();
for (String userId : userIds) {
jsonArray.add(new JsonPrimitive(userId));
}
jsonObject.add("userlist", jsonArray);
post(url, jsonObject.toString());
}
@Override
public String oauth2buildAuthorizationUrl(String redirectUri, String state) {
String url = "https://open.weixin.qq.com/connect/oauth2/authorize?" ;
url += "appid=" + wxCpConfigStorage.getCorpId();
url += "&redirect_uri=" + URIUtil.encodeURIComponent(redirectUri);
url += "&response_type=code";
url += "&scope=snsapi_base";
if (state != null) {
url += "&state=" + state;
}
url += "#wechat_redirect";
return url;
}
@Override
public String[] oauth2getUserInfo(String code) throws WxErrorException {
return oauth2getUserInfo(wxCpConfigStorage.getAgentId(), code);
}
@Override
public String[] oauth2getUserInfo(String agentId, String code) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/user/getuserinfo?"
+ "code=" + code
+ "&agendid=" + agentId;
String responseText = get(url, null);
JsonElement je = Streams.parse(new JsonReader(new StringReader(responseText)));
JsonObject jo = je.getAsJsonObject();
return new String[] {GsonHelper.getString(jo, "UserId"), GsonHelper.getString(jo, "DeviceId")};
}
@Override
public int invite(String userId, String inviteTips) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/invite/send";
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("userid", userId);
if (StringUtils.isNotEmpty(inviteTips)) {
jsonObject.addProperty("invite_tips", inviteTips);
}
String responseContent = post(url, jsonObject.toString());
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
return tmpJsonElement.getAsJsonObject().get("type").getAsInt();
}
@Override
public String[] getCallbackIp() throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/getcallbackip";
String responseContent = get(url, null);
JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
JsonArray jsonArray = tmpJsonElement.getAsJsonObject().get("ip_list").getAsJsonArray();
String[] ips = new String[jsonArray.size()];
for(int i = 0; i < jsonArray.size(); i++) {
ips[i] = jsonArray.get(i).getAsString();
}
return ips;
}
public String get(String url, String queryParam) throws WxErrorException {
return execute(new SimpleGetRequestExecutor(), url, queryParam);
}
public String post(String url, String postData) throws WxErrorException {
return execute(new SimplePostRequestExecutor(), url, postData);
}
/**
* 向微信端发送请求，在这里执行的策略是当发生access_token过期时才去刷新，然后重新执行请求，而不是全局定时请求
*
* @param executor
* @param uri
* @param data
* @return
* @throws WxErrorException
*/
public T execute(RequestExecutor executor, String uri, E data) throws WxErrorException {
int retryTimes = 0;
do {
try {
return executeInternal(executor, uri, data);
} catch (WxErrorException e) {
WxError error = e.getError();
/**
* -1 系统繁忙, 1000ms后重试
*/
if (error.getErrorCode() == -1) {
int sleepMillis = retrySleepMillis * (1 << retryTimes);
try {
log.debug("微信系统繁忙，{}ms 后重试(第{}次)", sleepMillis, retryTimes + 1);
Thread.sleep(sleepMillis);
} catch (InterruptedException e1) {
throw new RuntimeException(e1);
}
} else {
throw e;
}
}
} while(++retryTimes < maxRetryTimes);
throw new RuntimeException("微信服务端异常，超出重试次数");
}
protected T executeInternal(RequestExecutor executor, String uri, E data) throws WxErrorException {
if (uri.indexOf("access_token=") != -1) {
throw new IllegalArgumentException("uri参数中不允许有access_token: " + uri);
}
String accessToken = getAccessToken(false);
String uriWithAccessToken = uri;
uriWithAccessToken += uri.indexOf('?') == -1 ? "?access_token=" + accessToken : "&access_token=" + accessToken;
try {
return executor.execute(getHttpclient(), httpProxy, uriWithAccessToken, data);
} catch (WxErrorException e) {
WxError error = e.getError();
/*
* 发生以下情况时尝试刷新access_token
* 40001 获取access_token时AppSecret错误，或者access_token无效
* 42001 access_token超时
*/
if (error.getErrorCode() == 42001 || error.getErrorCode() == 40001) {
// 强制设置wxCpConfigStorage它的access token过期了，这样在下一次请求里就会刷新access token
wxCpConfigStorage.expireAccessToken();
return execute(executor, uri, data);
}
if (error.getErrorCode() != 0) {
throw new WxErrorException(error);
}
return null;
} catch (ClientProtocolException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
protected CloseableHttpClient getHttpclient() {
return httpClient;
}
public void setWxCpConfigStorage(WxCpConfigStorage wxConfigProvider) {
this.wxCpConfigStorage = wxConfigProvider;
String http_proxy_host = wxCpConfigStorage.getHttp_proxy_host();
int http_proxy_port = wxCpConfigStorage.getHttp_proxy_port();
String http_proxy_username = wxCpConfigStorage.getHttp_proxy_username();
String http_proxy_password = wxCpConfigStorage.getHttp_proxy_password();
if(StringUtils.isNotBlank(http_proxy_host)) {
// 使用代理服务器
if(StringUtils.isNotBlank(http_proxy_username)) {
// 需要用户认证的代理服务器
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(
new AuthScope(http_proxy_host, http_proxy_port),
new UsernamePasswordCredentials(http_proxy_username, http_proxy_password));
httpClient = HttpClients
.custom()
.setDefaultCredentialsProvider(credsProvider)
.build();
} else {
// 无需用户认证的代理服务器
httpClient = HttpClients.createDefault();
}
httpProxy = new HttpHost(http_proxy_host, http_proxy_port);
} else {
httpClient = HttpClients.createDefault();
}
}
@Override
public void setRetrySleepMillis(int retrySleepMillis) {
this.retrySleepMillis = retrySleepMillis;
}
@Override
public void setMaxRetryTimes(int maxRetryTimes) {
this.maxRetryTimes = maxRetryTimes;
}
@Override
public WxSession getSession(String id) {
if (sessionManager == null) {
return null;
}
return sessionManager.getSession(id);
}
@Override
public WxSession getSession(String id, boolean create) {
if (sessionManager == null) {
return null;
}
return sessionManager.getSession(id, create);
}
@Override
public void setSessionManager(WxSessionManager sessionManager) {
this.sessionManager = sessionManager;
}
@Override
public String replaceParty(String mediaId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/batch/replaceparty";
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("media_id", mediaId);
return post(url, jsonObject.toString());
}
@Override
public String replaceUser(String mediaId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/batch/replaceuser";
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("media_id", mediaId);
return post(url, jsonObject.toString());
}
@Override
public String getTaskResult(String joinId) throws WxErrorException {
String url = "https://qyapi.weixin.qq.com/cgi-bin/batch/getresult?jobid="+joinId;
return get(url, null);
}
public File getTmpDirFile() {
return tmpDirFile;
}
public void setTmpDirFile(File tmpDirFile) {
this.tmpDirFile = tmpDirFile;
}
public static void main(String[] args) {
Float a = 3.1f;
System.out.println(3.1d);
System.out.println(new BigDecimal(3.1d));
System.out.println(new BigDecimal(a));
System.out.println(a.toString());
System.out.println(a.doubleValue());
}
}
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