/*
* 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.translator.odata4;
import java.sql.Blob;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;
import java.util.TreeMap;
import javax.resource.cci.ConnectionFactory;
import org.apache.olingo.client.api.edm.xml.XMLMetadata;
import org.apache.olingo.client.core.serialization.ClientODataDeserializerImpl;
import org.apache.olingo.commons.api.format.ContentType;
import org.apache.olingo.commons.api.http.HttpStatusCode;
import org.teiid.core.util.PropertiesUtils;
import org.teiid.core.util.StringUtil;
import org.teiid.language.Call;
import org.teiid.language.Command;
import org.teiid.language.QueryExpression;
import org.teiid.language.visitor.SQLStringVisitor;
import org.teiid.metadata.MetadataFactory;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.translator.*;
import org.teiid.translator.jdbc.AliasModifier;
import org.teiid.translator.jdbc.FunctionModifier;
import org.teiid.translator.ws.BinaryWSProcedureExecution;
/**
* TODO:
* Type comparison isof(T), isof(x, T) Whether targeted instance can be converted to the specified type.
* media streams are generally not supported yet. (blobs, clobs)
*/
@Translator(name="odata4", description="A translator for making OData V4 data service calls")
public class ODataExecutionFactory extends ExecutionFactory<ConnectionFactory, WSConnection> {
public final static TimeZone DEFAULT_TIME_ZONE = TimeZone.getDefault();
static final String INVOKE_HTTP = "invokeHttp"; //$NON-NLS-1$
protected Map<String, FunctionModifier> functionModifiers = new TreeMap<String, FunctionModifier>(String.CASE_INSENSITIVE_ORDER);
private boolean supportsOdataFilter;
private boolean supportsOdataOrderBy;
private boolean supportsOdataCount;
private boolean supportsOdataSkip;
private boolean supportsOdataTop;
private boolean supportsUpdates = true;
private XMLMetadata serviceMatadata;
public ODataExecutionFactory() {
setSourceRequiredForMetadata(true);
setSupportsInnerJoins(true);
setSupportsOrderBy(true);
setSupportsOuterJoins(true);
setSupportsFullOuterJoins(true);
setSupportedJoinCriteria(SupportedJoinCriteria.KEY);
setSupportsOdataCount(true);
setSupportsOdataFilter(true);
setSupportsOdataOrderBy(true);
setSupportsOdataSkip(false); // based on document based on cursoring, this will not be correct
setSupportsOdataTop(false);
setTransactionSupport(TransactionSupport.NONE);
registerFunctionModifier(SourceSystemFunctions.CONVERT, new AliasModifier("cast")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.LOCATE, new AliasModifier("indexof")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.LCASE, new AliasModifier("tolower")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.UCASE, new AliasModifier("toupper")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.DAYOFMONTH, new AliasModifier("day")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.ST_DISTANCE, new AliasModifier("geo.distance")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.ST_INTERSECTS, new AliasModifier("geo.intersects")); //$NON-NLS-1$
addPushDownFunction("odata", "startswith", TypeFacility.RUNTIME_NAMES.BOOLEAN, //$NON-NLS-1$ //$NON-NLS-2$
TypeFacility.RUNTIME_NAMES.STRING, TypeFacility.RUNTIME_NAMES.STRING);
addPushDownFunction("odata", "contains", TypeFacility.RUNTIME_NAMES.BOOLEAN, //$NON-NLS-1$ //$NON-NLS-2$
TypeFacility.RUNTIME_NAMES.STRING, TypeFacility.RUNTIME_NAMES.STRING);
}
@Override
public void start() throws TranslatorException {
super.start();
}
@Override
public void getMetadata(MetadataFactory metadataFactory, WSConnection conn) throws TranslatorException {
ODataMetadataProcessor metadataProcessor = (ODataMetadataProcessor)getMetadataProcessor();
PropertiesUtils.setBeanProperties(metadataProcessor, metadataFactory.getModelProperties(), "importer"); //$NON-NLS-1$
metadataProcessor.setExecutionfactory(this);
metadataProcessor.process(metadataFactory, conn);
}
@Override
public MetadataProcessor<WSConnection> getMetadataProcessor() {
return new ODataMetadataProcessor();
}
protected XMLMetadata getSchema(WSConnection conn) throws TranslatorException {
if (this.serviceMatadata == null) {
try {
BaseQueryExecution execution = new BaseQueryExecution(this, null, null, conn);
Map<String, List<String>> headers = new HashMap<String, List<String>>();
BinaryWSProcedureExecution call = execution.invokeHTTP("GET", "$metadata", null, headers); //$NON-NLS-1$ //$NON-NLS-2$
if (call.getResponseCode() != HttpStatusCode.OK.getStatusCode()) {
throw execution.buildError(call);
}
Blob out = (Blob)call.getOutputParameterValues().get(0);
ClientODataDeserializerImpl deserializer =
new ClientODataDeserializerImpl(false, ContentType.APPLICATION_XML);
this.serviceMatadata = deserializer.toMetadata(out.getBinaryStream());
return this.serviceMatadata;
} catch (SQLException e) {
throw new TranslatorException(e);
} catch (Exception e) {
throw new TranslatorException(e);
}
}
return this.serviceMatadata;
}
@Override
public ResultSetExecution createResultSetExecution(QueryExpression command,
ExecutionContext executionContext, RuntimeMetadata metadata,
WSConnection connection) throws TranslatorException {
return new ODataQueryExecution(this, command, executionContext, metadata, connection);
}
@Override
public ProcedureExecution createProcedureExecution(Call command,
ExecutionContext executionContext, RuntimeMetadata metadata,
WSConnection connection) throws TranslatorException {
String nativeQuery = command.getMetadataObject().getProperty(
SQLStringVisitor.TEIID_NATIVE_QUERY, false);
if (nativeQuery != null) {
throw new TranslatorException(ODataPlugin.Util.gs(ODataPlugin.Event.TEIID17014));
}
return new ODataProcedureExecution(command, this, executionContext, metadata, connection);
}
@Override
public UpdateExecution createUpdateExecution(Command command,
ExecutionContext executionContext, RuntimeMetadata metadata,
WSConnection connection) throws TranslatorException {
if (supportsUpdates()) {
return new ODataUpdateExecution(command, this, executionContext,metadata, connection);
} else {
throw new TranslatorException(ODataPlugin.Util.gs(ODataPlugin.Event.TEIID17030));
}
}
@Override
public List<String> getSupportedFunctions() {
List<String> supportedFunctions = new ArrayList<String>();
supportedFunctions.addAll(getDefaultSupportedFunctions());
// String functions
supportedFunctions.add(SourceSystemFunctions.ENDSWITH);
supportedFunctions.add(SourceSystemFunctions.LENGTH);
supportedFunctions.add(SourceSystemFunctions.LOCATE); //indexof
supportedFunctions.add(SourceSystemFunctions.SUBSTRING);
supportedFunctions.add(SourceSystemFunctions.LCASE); //tolower
supportedFunctions.add(SourceSystemFunctions.UCASE); //toupper
supportedFunctions.add(SourceSystemFunctions.TRIM);
supportedFunctions.add(SourceSystemFunctions.CONCAT);
supportedFunctions.add(SourceSystemFunctions.CONVERT);
// date functions
supportedFunctions.add(SourceSystemFunctions.YEAR);
supportedFunctions.add(SourceSystemFunctions.MONTH);
supportedFunctions.add(SourceSystemFunctions.NOW);
supportedFunctions.add(SourceSystemFunctions.HOUR);
supportedFunctions.add(SourceSystemFunctions.MINUTE);
supportedFunctions.add(SourceSystemFunctions.SECOND);
supportedFunctions.add(SourceSystemFunctions.DAYOFMONTH);
// arithmetic functions
supportedFunctions.add(SourceSystemFunctions.ROUND);
supportedFunctions.add(SourceSystemFunctions.FLOOR);
supportedFunctions.add(SourceSystemFunctions.CEILING);
supportedFunctions.add(SourceSystemFunctions.MOD);
// geospatial functions
supportedFunctions.add(SourceSystemFunctions.ST_DISTANCE);
supportedFunctions.add(SourceSystemFunctions.ST_INTERSECTS);
return supportedFunctions;
}
/**
* Return a map of function name to FunctionModifier.
* @return Map of function name to FunctionModifier.
*/
public Map<String, FunctionModifier> getFunctionModifiers() {
return this.functionModifiers;
}
/**
* Add the {@link FunctionModifier} to the set of known modifiers.
* @param name
* @param modifier
*/
public void registerFunctionModifier(String name, FunctionModifier modifier) {
this.functionModifiers.put(name, modifier);
}
public List<String> getDefaultSupportedFunctions(){
return Arrays.asList(new String[] { "+", "-", "*", "/" }); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}
@TranslatorProperty(display="Supports $Filter", description="True, $filter is supported", advanced=true)
public boolean supportsOdataFilter() {
return supportsOdataFilter;
}
public void setSupportsOdataFilter(boolean supports) {
this.supportsOdataFilter = supports;
}
@TranslatorProperty(display="Supports $OrderBy", description="True, $orderby is supported", advanced=true)
public boolean supportsOdataOrderBy() {
return supportsOdataOrderBy;
}
public void setSupportsOdataOrderBy(boolean supports) {
this.supportsOdataOrderBy = supports;
}
@TranslatorProperty(display="Supports $count", description="True, $count is supported", advanced=true)
public boolean supportsOdataCount() {
return supportsOdataCount;
}
public void setSupportsOdataCount(boolean supports) {
this.supportsOdataCount = supports;
}
@TranslatorProperty(display="Supports $skip", description="True, $skip is supported", advanced=true)
public boolean supportsOdataSkip() {
return supportsOdataSkip;
}
public void setSupportsOdataSkip(boolean supports) {
this.supportsOdataSkip = supports;
}
@TranslatorProperty(display="Supports $top", description="True, $top is supported", advanced=true)
public boolean supportsOdataTop() {
return supportsOdataTop;
}
public void setSupportsOdataTop(boolean supports) {
this.supportsOdataTop = supports;
}
@TranslatorProperty(display="Supports Updates",
description="True, if(PUT,PATCH,DELETE) operations supported",
advanced=true)
public boolean supportsUpdates() {
return supportsUpdates;
}
public void setSupportsUpdates(boolean supports) {
this.supportsUpdates = supports;
}
@Override
public boolean supportsCompareCriteriaEquals() {
return this.supportsOdataFilter;
}
@Override
public boolean supportsCompareCriteriaOrdered() {
return supportsOdataFilter;
}
@Override
public boolean supportsIsNullCriteria() {
return supportsOdataFilter;
}
@Override
public boolean supportsOrCriteria() {
return supportsOdataFilter;
}
@Override
public boolean supportsNotCriteria() {
return supportsOdataFilter;
}
public boolean supportsInCriteria() {
return supportsOdataFilter;
}
@Override
public boolean supportsQuantifiedCompareCriteriaSome() {
return false; // TODO:for ANY
}
@Override
public boolean supportsQuantifiedCompareCriteriaAll() {
return false; // TODO:FOR ALL
}
@Override
@TranslatorProperty(display="Supports ORDER BY",
description="True, if this connector supports ORDER BY", advanced=true)
public boolean supportsOrderBy() {
return supportsOdataOrderBy;
}
@Override
public boolean supportsOrderByUnrelated() {
return this.supportsOdataOrderBy;
}
@Override
public boolean supportsAggregatesCount() {
return supportsOdataCount;
}
@Override
public boolean supportsAggregatesCountStar() {
return supportsOdataCount;
}
@Override
public boolean supportsRowLimit() {
return supportsOdataTop;
}
@Override
public boolean supportsRowOffset() {
return supportsOdataSkip;
}
@Override
public boolean supportsOnlyLiteralComparison() {
return true;
}
@Override
public boolean useAnsiJoin() {
return true;
}
public boolean supportsArrayType() {
return true;
}
protected String escapeString(String str, String quote) {
return StringUtil.replaceAll(str, quote, quote + quote);
}
}