/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.dqp.internal.datamgr;
import java.io.Serializable;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import javax.security.auth.Subject;
import org.teiid.adminapi.Session;
import org.teiid.common.buffer.BufferManager;
import org.teiid.core.util.EquivalenceUtil;
import org.teiid.core.util.HashCodeUtil;
import org.teiid.core.util.StringUtil;
import org.teiid.dqp.internal.process.RequestWorkItem;
import org.teiid.dqp.message.RequestID;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.query.util.CommandContext;
import org.teiid.translator.CacheDirective;
import org.teiid.translator.CacheDirective.Scope;
import org.teiid.translator.ExecutionContext;
/**
*/
public class ExecutionContextImpl implements ExecutionContext {
// Access Node ID
private String partID;
// currentConnector ID
private String connectorName;
// Execute count of the query
private String executeCount;
// keep the execution object alive during the processing. default:false
private boolean keepAlive = false;
private boolean isTransactional;
private int batchSize = BufferManager.DEFAULT_PROCESSOR_BATCH_SIZE;
private List<Exception> warnings = new LinkedList<Exception>();
private Session session;
private boolean dataAvailable;
private Collection<String> generalHint;
private Collection<String> hint;
private CommandContext commandContext;
private CacheDirective cacheDirective;
private RuntimeMetadata runtimeMetadata;
private ConnectorWorkItem workItem;
private Scope scope;
public ExecutionContextImpl(String vdbName, Object vdbVersion, Serializable executionPayload,
String originalConnectionID, String connectorName, long requestId, String partId, String execCount) {
commandContext = new CommandContext();
commandContext.setVdbName(vdbName);
commandContext.setVdbVersion(vdbVersion.toString());
commandContext.setCommandPayload(executionPayload);
commandContext.setConnectionID(originalConnectionID);
commandContext.setRequestId(new RequestID(originalConnectionID, requestId));
this.connectorName = connectorName;
this.partID = partId;
this.executeCount = execCount;
}
public ExecutionContextImpl(CommandContext commandContext, String connectorName, String partId, String execCount, ConnectorWorkItem workItem) {
this.connectorName = connectorName;
this.partID = partId;
this.executeCount = execCount;
this.commandContext = commandContext;
this.workItem = workItem;
}
@Override
public org.teiid.CommandContext getCommandContext() {
return this.commandContext;
}
public String getConnectorIdentifier() {
return this.connectorName;
}
@Override
public String getRequestId() {
return this.commandContext.getRequestId();
}
@Override
public String getPartIdentifier() {
return this.partID;
}
@Override
public String getExecutionCountIdentifier() {
return this.executeCount;
}
@Override
public String getVdbName() {
return this.commandContext.getVdbName();
}
@Override
public String getVdbVersion() {
return this.commandContext.getVdbVersion();
}
@Override
public Subject getSubject() {
return this.commandContext.getSubject();
}
@Override
public Serializable getCommandPayload() {
return this.commandContext.getCommandPayload();
}
@Override
public String getConnectionId() {
return this.commandContext.getConnectionId();
}
@Override
public void keepExecutionAlive(boolean alive) {
this.keepAlive = alive;
}
boolean keepExecutionAlive() {
return this.keepAlive;
}
public boolean equals(Object obj) {
if(obj == this) {
return true;
}
if(! (obj instanceof ExecutionContext)) {
return false;
}
ExecutionContext other = (ExecutionContext) obj;
return EquivalenceUtil.areEqual(this.getRequestId(), other.getRequestId()) &&
EquivalenceUtil.areEqual(this.getPartIdentifier(), other.getPartIdentifier());
}
public int hashCode() {
return HashCodeUtil.hashCode(HashCodeUtil.hashCode(0, getRequestId()), partID);
}
public String toString() {
String userName = null;
if (this.getSubject() != null) {
for(Principal p:this.getSubject().getPrincipals()) {
userName = p.getName();
}
}
return "ExecutionContext<vdb=" + this.getVdbName() + ", version=" + this.getVdbVersion() + ", user=" + userName + ">"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}
@Override
public boolean isTransactional() {
return isTransactional;
}
void setTransactional(boolean isTransactional) {
this.isTransactional = isTransactional;
}
@Override
public int getBatchSize() {
return batchSize;
}
public void setBatchSize(int batchSize) {
this.batchSize = batchSize;
}
/**
* Add an exception as a warning to this Execution.
*/
@Override
public void addWarning(Exception ex) {
if (ex == null) {
return;
}
this.warnings.add(ex);
}
public List<Exception> getWarnings() {
List<Exception> result = new ArrayList<Exception>(warnings);
warnings.clear();
return result;
}
@Override
public Session getSession() {
return this.session;
}
public void setSession(Session session) {
this.session = session;
}
@Override
public synchronized void dataAvailable() {
RequestWorkItem requestWorkItem = this.commandContext.getWorkItem();
dataAvailable = true;
if (requestWorkItem != null) {
requestWorkItem.moreWork();
}
}
public synchronized boolean isDataAvailable() {
boolean result = dataAvailable;
dataAvailable = false;
return result;
}
@Override
public String getGeneralHint() {
return StringUtil.join(generalHint, " "); //$NON-NLS-1$
}
@Override
public String getSourceHint() {
return StringUtil.join(hint, " "); //$NON-NLS-1$
}
@Override
public Collection<String> getGeneralHints() {
return generalHint;
}
@Override
public Collection<String> getSourceHints() {
return hint;
}
public void setGeneralHints(Collection<String> generalHint) {
this.generalHint = generalHint;
}
public void setHints(Collection<String> hint) {
this.hint = hint;
}
@Override
public String getConnectionID() {
return getConnectionId();
}
@Override
public Serializable getExecutionPayload() {
return getCommandPayload();
}
@Override
public String getRequestID() {
return getRequestId();
}
@Override
public CacheDirective getCacheDirective() {
return cacheDirective;
}
public void setCacheDirective(CacheDirective directive) {
this.cacheDirective = directive;
}
public void setRuntimeMetadata(RuntimeMetadataImpl queryMetadata) {
this.runtimeMetadata = queryMetadata;
}
@Override
public RuntimeMetadata getRuntimeMetadata() {
return this.runtimeMetadata;
}
@Override
public void logCommand(Object... command) {
if (this.workItem != null) {
this.workItem.logCommand(command);
}
}
@Override
public Scope getScope() {
return scope;
}
@Override
public void setScope(Scope scope) {
this.scope = scope;
}
}