Examples with JCatchBlock com.helger.jcodemodel.JCatchBlock used on opensource projects

Example 1 with JCatchBlock

use of com.helger.jcodemodel.JCatchBlock in project androidannotations by androidannotations.

the class RestMethodHandler method surroundWithRestTryCatch.

/**
	 * Adds the try/catch around the rest execution code.
	 *
	 * If an exception is caught, it will first check if the handler is set. If
	 * the handler is set, it will call the handler and return null (or nothing
	 * if void). If the handler isn't set, it will re-throw the exception so
	 * that it behaves as it did previous to this feature.
	 */
private JBlock surroundWithRestTryCatch(RestHolder holder, JBlock block, boolean methodReturnVoid) {
    if (holder.getRestErrorHandlerField() != null) {
        JBlock newBlock = new JBlock().bracesRequired(false).indentRequired(false);
        JTryBlock tryBlock = newBlock._try();
        codeModelHelper.copy(block, tryBlock.body());
        JCatchBlock jCatch = tryBlock._catch(getJClass(NESTED_RUNTIME_EXCEPTION));
        JBlock catchBlock = jCatch.body();
        JConditional conditional = catchBlock._if(JOp.ne(holder.getRestErrorHandlerField(), JExpr._null()));
        JVar exceptionParam = jCatch.param("e");
        JBlock thenBlock = conditional._then();
        // call the handler method if it was set.
        thenBlock.add(holder.getRestErrorHandlerField().invoke("onRestClientExceptionThrown").arg(exceptionParam));
        // return null if exception was caught and handled.
        if (!methodReturnVoid) {
            thenBlock._return(JExpr._null());
        }
        // re-throw the exception if handler wasn't set.
        conditional._else()._throw(exceptionParam);
        return newBlock;
    }
    return block;
}

Example 2 with JCatchBlock

use of com.helger.jcodemodel.JCatchBlock in project androidannotations by androidannotations.

the class TransactionalHandler method process.

@Override
public void process(Element element, EComponentHolder holder) {
    ExecutableElement executableElement = (ExecutableElement) element;
    String returnTypeName = executableElement.getReturnType().toString();
    AbstractJClass returnType = getJClass(returnTypeName);
    JMethod method = codeModelHelper.overrideAnnotatedMethod(executableElement, holder);
    codeModelHelper.removeBody(method);
    JVar db = method.params().get(0);
    JBlock body = method.body();
    body.invoke(db, "beginTransaction");
    JTryBlock tryBlock = body._try();
    IJExpression activitySuper = holder.getGeneratedClass().staticRef("super");
    JInvocation superCall = JExpr.invoke(activitySuper, method);
    for (JVar param : method.params()) {
        superCall.arg(param);
    }
    JBlock tryBody = tryBlock.body();
    if (returnTypeName.equals("void")) {
        tryBody.add(superCall);
        tryBody.invoke(db, "setTransactionSuccessful");
        tryBody._return();
    } else {
        JVar result = tryBody.decl(returnType, "result_", superCall);
        tryBody.invoke(db, "setTransactionSuccessful");
        tryBody._return(result);
    }
    JCatchBlock catchBlock = tryBlock._catch(getJClass(RuntimeException.class));
    JVar exceptionParam = catchBlock.param("e");
    JBlock catchBody = catchBlock.body();
    JInvocation errorInvoke = catchBody.staticInvoke(getClasses().LOG, "e");
    errorInvoke.arg(logTagForClassHolder(holder));
    errorInvoke.arg("Error in transaction");
    errorInvoke.arg(exceptionParam);
    catchBody._throw(exceptionParam);
    tryBlock._finally().invoke(db, "endTransaction");
}

Example 3 with JCatchBlock

use of com.helger.jcodemodel.JCatchBlock in project androidannotations by androidannotations.

the class OrmLiteDaoHandler method assignValue.

@Override
public void assignValue(JBlock targetBlock, IJAssignmentTarget fieldRef, EComponentHolder holder, Element element, Element param) {
    OrmLiteHolder ormLiteHolder = holder.getPluginHolder(new OrmLiteHolder(holder));
    AbstractJClass modelClass = getJClass(ormLiteHelper.getEntityType(param).toString());
    AbstractJClass idClass = getJClass(ormLiteHelper.getEntityIdType(param).toString());
    IJExpression modelClassDotClass = modelClass.dotclass();
    AbstractJClass daoClass = getJClass(OrmLiteClasses.DAO).narrow(modelClass, idClass);
    AbstractJClass daoImplClass = codeModelHelper.typeMirrorToJClass(param.asType());
    TypeMirror databaseHelperTypeMirror = annotationHelper.extractAnnotationParameter(element, "helper");
    JFieldVar databaseHelperRef = ormLiteHolder.getDatabaseHelperRef(databaseHelperTypeMirror);
    IJExpression injectExpr = databaseHelperRef.invoke("getDao").arg(modelClassDotClass);
    if (elementExtendsRuntimeExceptionDao(param)) {
        injectExpr = _new(daoImplClass).arg(cast(daoClass, injectExpr));
    }
    JTryBlock tryBlock = targetBlock._try();
    tryBlock.body().add(fieldRef.assign(injectExpr));
    JCatchBlock catchBlock = tryBlock._catch(getClasses().SQL_EXCEPTION);
    JVar exception = catchBlock.param("e");
    String fieldName = param.getSimpleName().toString();
    //
    catchBlock.body().staticInvoke(getClasses().LOG, //
    "e").arg(//
    logTagForClassHolder(holder)).arg(//
    "Could not create DAO " + fieldName).arg(exception);
}

Example 4 with JCatchBlock

use of com.helger.jcodemodel.JCatchBlock in project androidannotations by androidannotations.

the class BackgroundHandler method process.

@Override
public void process(Element element, EComponentHolder holder) throws Exception {
    ExecutableElement executableElement = (ExecutableElement) element;
    JMethod delegatingMethod = codeModelHelper.overrideAnnotatedMethod(executableElement, holder);
    JBlock previousMethodBody = codeModelHelper.removeBody(delegatingMethod);
    JDefinedClass anonymousTaskClass = getCodeModel().anonymousClass(BackgroundExecutor.Task.class);
    JMethod executeMethod = anonymousTaskClass.method(JMod.PUBLIC, getCodeModel().VOID, "execute");
    executeMethod.annotate(Override.class);
    // Catch exception in user code
    JTryBlock tryBlock = executeMethod.body()._try();
    tryBlock.body().add(previousMethodBody);
    JCatchBlock catchBlock = tryBlock._catch(getClasses().THROWABLE);
    JVar caughtException = catchBlock.param("e");
    IJStatement uncaughtExceptionCall = //
    getClasses().THREAD.staticInvoke(//
    "getDefaultUncaughtExceptionHandler").invoke(//
    "uncaughtException").arg(//
    getClasses().THREAD.staticInvoke("currentThread")).arg(caughtException);
    catchBlock.body().add(uncaughtExceptionCall);
    Background annotation = element.getAnnotation(Background.class);
    String id = annotation.id();
    long delay = annotation.delay();
    String serial = annotation.serial();
    AbstractJClass backgroundExecutorClass = getJClass(BackgroundExecutor.class);
    JInvocation newTask = _new(anonymousTaskClass).arg(lit(id)).arg(lit(delay)).arg(lit(serial));
    JInvocation executeCall = backgroundExecutorClass.staticInvoke("execute").arg(newTask);
    delegatingMethod.body().add(executeCall);
}

Example 5 with JCatchBlock

use of com.helger.jcodemodel.JCatchBlock in project androidannotations by androidannotations.

the class HttpsClientHandler method assignValue.

@Override
public void assignValue(JBlock targetBlock, IJAssignmentTarget fieldRef, EComponentHolder holder, Element element, Element param) {
    IRInnerClass rInnerClass = getEnvironment().getRClass().get(IRClass.Res.RAW);
    HttpsClient annotation = element.getAnnotation(HttpsClient.class);
    JFieldRef trustStoreRawIdRef = annotationHelper.extractOneAnnotationFieldRef(element, getTarget(), rInnerClass, false, "trustStore", "trustStoreResName");
    JFieldRef keyStoreRawIdRef = annotationHelper.extractOneAnnotationFieldRef(element, getTarget(), rInnerClass, false, "keyStore", "keyStoreResName");
    String trustStorePwd = annotation.trustStorePwd();
    String keyStorePwd = annotation.keyStorePwd();
    boolean allowAllHostnames = annotation.allowAllHostnames();
    boolean useCustomTrustStore = trustStoreRawIdRef != null;
    boolean useCustomKeyStore = keyStoreRawIdRef != null;
    ProcessHolder.Classes classes = getClasses();
    JDefinedClass jAnonClass = getCodeModel().anonymousClass(classes.DEFAULT_HTTP_CLIENT);
    JMethod method = jAnonClass.method(JMod.PROTECTED, classes.CLIENT_CONNECTION_MANAGER, "createClientConnectionManager");
    method.annotate(Override.class);
    JTryBlock jTryBlock = method.body()._try();
    JVar jVarTrusted = null;
    JVar jVarKeystore = null;
    if (useCustomKeyStore) {
        jVarKeystore = jTryBlock.body().decl(classes.KEY_STORE, "keystore");
        jVarKeystore.init(classes.KEY_STORE.staticInvoke("getInstance").arg("BKS"));
    }
    if (useCustomTrustStore || useCustomKeyStore) {
        /*
			 * use default trust store
			 */
        jVarTrusted = jTryBlock.body().decl(classes.KEY_STORE, "trusted");
        jVarTrusted.init(classes.KEY_STORE.staticInvoke("getInstance").arg("BKS"));
    }
    JVar jVarRes = null;
    JVar jVarTrstFile = null;
    JVar jVarKeyFile = null;
    if (useCustomKeyStore || useCustomTrustStore) {
        jVarRes = jTryBlock.body().decl(classes.RESOURCES, "res", invoke("getResources"));
    }
    if (useCustomKeyStore) {
        JInvocation jInvRawKey = jVarRes.invoke("openRawResource").arg(keyStoreRawIdRef);
        jVarKeyFile = jTryBlock.body().decl(classes.INPUT_STREAM, "inKeystore", jInvRawKey);
    }
    if (useCustomTrustStore) {
        JInvocation jInvRawTrust = jVarRes.invoke("openRawResource").arg(trustStoreRawIdRef);
        jVarTrstFile = jTryBlock.body().decl(classes.INPUT_STREAM, "inTrustStore", jInvRawTrust);
    } else if (useCustomKeyStore) {
        jVarTrstFile = jTryBlock.body().decl(classes.INPUT_STREAM, "inTrustStore", _new(classes.FILE_INPUT_STREAM).arg("/system/etc/security/cacerts.bks"));
    }
    // try load
    if (useCustomKeyStore || useCustomTrustStore) {
        JTryBlock jTryLoad = jTryBlock.body()._try();
        if (useCustomKeyStore) {
            jTryLoad.body().add(invoke(jVarKeystore, "load").arg(jVarKeyFile).arg(invoke(lit(keyStorePwd), "toCharArray")));
        }
        jTryLoad.body().add(invoke(jVarTrusted, "load").arg(jVarTrstFile).arg(invoke(lit(trustStorePwd), "toCharArray")));
        // finally load
        JBlock jFinally = jTryLoad._finally();
        if (useCustomKeyStore) {
            jFinally.add(invoke(jVarKeyFile, "close"));
        }
        jFinally.add(invoke(jVarTrstFile, "close"));
    }
    if (null == jVarKeystore && null == jVarTrusted) {
        JVar jVarCcm = jTryBlock.body().decl(classes.CLIENT_CONNECTION_MANAGER, "ccm");
        jVarCcm.init(_super().invoke("createClientConnectionManager"));
        if (allowAllHostnames) {
            IJExpression jCast = cast(classes.SSL_SOCKET_FACTORY, jVarCcm.invoke("getSchemeRegistry").invoke("getScheme").arg("https").invoke("getSocketFactory"));
            jTryBlock.body().add(jCast.invoke("setHostnameVerifier").arg(classes.SSL_SOCKET_FACTORY.staticRef("ALLOW_ALL_HOSTNAME_VERIFIER")));
        }
        jTryBlock.body()._return(jVarCcm);
    } else {
        JVar jVarSslFact = jTryBlock.body().decl(classes.SSL_SOCKET_FACTORY, "newSslSocketFactory");
        jVarSslFact.init(_new(classes.SSL_SOCKET_FACTORY).arg(null == jVarKeystore ? _null() : jVarKeystore).arg(keyStorePwd).arg(jVarTrusted));
        if (allowAllHostnames) {
            jTryBlock.body().add(invoke(jVarSslFact, "setHostnameVerifier").arg(classes.SSL_SOCKET_FACTORY.staticRef("ALLOW_ALL_HOSTNAME_VERIFIER")));
        }
        JVar jVarSchemeReg = jTryBlock.body().decl(classes.SCHEME_REGISTRY, "registry");
        jVarSchemeReg.init(_new(classes.SCHEME_REGISTRY));
        jTryBlock.body().add(invoke(jVarSchemeReg, "register").arg(_new(classes.SCHEME).arg("https").arg(jVarSslFact).arg(lit(443))));
        jTryBlock.body().add(invoke(jVarSchemeReg, "register").arg(_new(classes.SCHEME).arg("http").arg(classes.PLAIN_SOCKET_FACTORY.staticInvoke("getSocketFactory")).arg(lit(80))));
        JVar jVarCcm = jTryBlock.body().decl(classes.CLIENT_CONNECTION_MANAGER, "ccm");
        jVarCcm.init(_new(classes.SINGLE_CLIENT_CONN_MANAGER).arg(invoke("getParams")).arg(jVarSchemeReg));
        jTryBlock.body()._return(jVarCcm);
    }
    // catch block
    JCatchBlock jCatchBlock = jTryBlock._catch(classes.EXCEPTION);
    JVar jVarExceptionParam = jCatchBlock.param("e");
    jCatchBlock.body().add(jVarExceptionParam.invoke("printStackTrace"));
    jCatchBlock.body()._return(_super().invoke("createClientConnectionManager"));
    targetBlock.add(fieldRef.assign(_new(jAnonClass)));
}