| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.asterix.bad.lang.statement; |
| |
| import java.io.DataOutput; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ScheduledExecutorService; |
| |
| import org.apache.asterix.active.EntityId; |
| import org.apache.asterix.algebra.extension.ExtensionStatement; |
| import org.apache.asterix.app.active.ActiveNotificationHandler; |
| import org.apache.asterix.app.translator.QueryTranslator; |
| import org.apache.asterix.bad.BADConstants; |
| import org.apache.asterix.bad.BADJobService; |
| import org.apache.asterix.bad.extension.BADLangExtension; |
| import org.apache.asterix.bad.metadata.DeployedJobSpecEventListener; |
| import org.apache.asterix.bad.metadata.Procedure; |
| import org.apache.asterix.common.dataflow.ICcApplicationContext; |
| import org.apache.asterix.common.exceptions.AsterixException; |
| import org.apache.asterix.common.exceptions.CompilationException; |
| import org.apache.asterix.common.exceptions.ErrorCode; |
| import org.apache.asterix.common.metadata.DataverseName; |
| import org.apache.asterix.formats.nontagged.SerializerDeserializerProvider; |
| import org.apache.asterix.lang.common.base.Expression; |
| import org.apache.asterix.lang.common.expression.LiteralExpr; |
| import org.apache.asterix.lang.common.visitor.base.ILangVisitor; |
| import org.apache.asterix.metadata.MetadataManager; |
| import org.apache.asterix.metadata.MetadataTransactionContext; |
| import org.apache.asterix.metadata.declared.MetadataProvider; |
| import org.apache.asterix.om.base.AString; |
| import org.apache.asterix.om.base.IAObject; |
| import org.apache.asterix.translator.ConstantHelper; |
| import org.apache.asterix.translator.IRequestParameters; |
| import org.apache.asterix.translator.IStatementExecutor; |
| import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import org.apache.hyracks.api.client.IHyracksClientConnection; |
| import org.apache.hyracks.api.exceptions.HyracksDataException; |
| import org.apache.hyracks.api.job.DeployedJobSpecId; |
| import org.apache.hyracks.data.std.util.ArrayBackedValueStorage; |
| |
| public class ExecuteProcedureStatement extends ExtensionStatement { |
| |
| public static final String WAIT_FOR_COMPLETION = "wait-for-completion-procedure"; |
| |
| private final DataverseName dataverseName; |
| private final String procedureName; |
| private final int arity; |
| private final List<Expression> argList; |
| |
| public ExecuteProcedureStatement(DataverseName dataverseName, String procedureName, int arity, |
| List<Expression> argList) { |
| this.dataverseName = dataverseName; |
| this.procedureName = procedureName; |
| this.arity = arity; |
| this.argList = argList; |
| } |
| |
| public DataverseName getDataverseName() { |
| return dataverseName; |
| } |
| |
| public String getProcedureName() { |
| return procedureName; |
| } |
| |
| public int getArity() { |
| return arity; |
| } |
| |
| @Override |
| public byte getCategory() { |
| return Category.UPDATE; |
| } |
| |
| @Override |
| public <R, T> R accept(ILangVisitor<R, T> visitor, T arg) throws CompilationException { |
| return null; |
| } |
| |
| @Override |
| public String getName() { |
| return ExecuteProcedureStatement.class.getName(); |
| } |
| |
| @Override |
| public void handle(IHyracksClientConnection hcc, IStatementExecutor statementExecutor, |
| IRequestParameters requestParameters, MetadataProvider metadataProvider, int resultSetId) |
| throws HyracksDataException, AlgebricksException { |
| ICcApplicationContext appCtx = metadataProvider.getApplicationContext(); |
| ActiveNotificationHandler activeEventHandler = |
| (ActiveNotificationHandler) appCtx.getActiveNotificationHandler(); |
| DataverseName dataverse = statementExecutor.getActiveDataverseName(dataverseName); |
| boolean txnActive = false; |
| EntityId entityId = new EntityId(BADConstants.RUNTIME_ENTITY_PROCEDURE, dataverse, procedureName); |
| DeployedJobSpecEventListener listener = (DeployedJobSpecEventListener) activeEventHandler.getListener(entityId); |
| Procedure procedure; |
| |
| MetadataTransactionContext mdTxnCtx = null; |
| try { |
| mdTxnCtx = MetadataManager.INSTANCE.beginTransaction(); |
| txnActive = true; |
| procedure = BADLangExtension.getProcedure(mdTxnCtx, dataverse, procedureName, Integer.toString(getArity())); |
| if (procedure == null) { |
| throw new AlgebricksException("There is no procedure with this name " + procedureName + "."); |
| } |
| Map<byte[], byte[]> contextRuntimeVarMap = createParameterMap(procedure); |
| DeployedJobSpecId deployedJobSpecId = listener.getDeployedJobSpecId(); |
| if (procedure.getDuration().equals("")) { |
| BADJobService.runDeployedJobSpec(deployedJobSpecId, hcc, requestParameters.getResultSet(), |
| contextRuntimeVarMap, entityId, metadataProvider.getTxnIdFactory(), appCtx, listener, |
| (QueryTranslator) statementExecutor); |
| |
| } else { |
| ScheduledExecutorService ses = BADJobService.createExecutorServe(); |
| listener.setExecutorService(ses); |
| BADJobService.startRepetitiveDeployedJobSpec(ses, deployedJobSpecId, hcc, |
| BADJobService.findPeriod(procedure.getDuration()), contextRuntimeVarMap, entityId, |
| metadataProvider.getTxnIdFactory(), listener); |
| } |
| MetadataManager.INSTANCE.commitTransaction(mdTxnCtx); |
| txnActive = false; |
| } catch (Exception e) { |
| e.printStackTrace(); |
| if (txnActive) { |
| QueryTranslator.abort(e, e, mdTxnCtx); |
| } |
| throw HyracksDataException.create(e); |
| } finally { |
| metadataProvider.getLocks().unlock(); |
| } |
| } |
| |
| private Map<byte[], byte[]> createParameterMap(Procedure procedure) throws AsterixException, HyracksDataException { |
| Map<byte[], byte[]> map = new HashMap<>(); |
| if (procedure.getParams().size() != argList.size()) { |
| throw AsterixException.create(ErrorCode.COMPILATION_INVALID_PARAMETER_NUMBER, |
| procedure.getEntityId().getEntityName(), argList.size()); |
| } |
| ArrayBackedValueStorage abvsKey = new ArrayBackedValueStorage(); |
| DataOutput dosKey = abvsKey.getDataOutput(); |
| ArrayBackedValueStorage abvsValue = new ArrayBackedValueStorage(); |
| DataOutput dosValue = abvsValue.getDataOutput(); |
| |
| for (int i = 0; i < procedure.getParams().size(); i++) { |
| if (!(argList.get(i) instanceof LiteralExpr)) { |
| //TODO handle nonliteral arguments to procedure |
| throw AsterixException.create(ErrorCode.TYPE_UNSUPPORTED, procedure.getEntityId().getEntityName(), |
| argList.get(i).getClass()); |
| } |
| //Turn the argument name into a byte array |
| IAObject str = new AString(procedure.getParams().get(i)); |
| abvsKey.reset(); |
| SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(str.getType()).serialize(str, dosKey); |
| //We do not save the type tag of the string key |
| byte[] key = new byte[abvsKey.getLength() - 1]; |
| System.arraycopy(abvsKey.getByteArray(), 1, key, 0, abvsKey.getLength() - 1); |
| |
| //Turn the argument value into a byte array |
| IAObject object = ConstantHelper.objectFromLiteral(((LiteralExpr) argList.get(i)).getValue()); |
| abvsValue.reset(); |
| SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(object.getType()).serialize(object, |
| dosValue); |
| byte[] value = new byte[abvsValue.getLength()]; |
| System.arraycopy(abvsValue.getByteArray(), abvsValue.getStartOffset(), value, 0, abvsValue.getLength()); |
| |
| map.put(key, value); |
| } |
| |
| return map; |
| } |
| |
| } |