/*
* 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.io.StringWriter;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.apache.olingo.client.api.serialization.ODataSerializerException;
import org.apache.olingo.client.core.ConfigurationImpl;
import org.apache.olingo.client.core.serialization.JsonSerializer;
import org.apache.olingo.client.core.uri.URIBuilderImpl;
import org.apache.olingo.commons.api.data.ComplexValue;
import org.apache.olingo.commons.api.data.Entity;
import org.apache.olingo.commons.api.data.Property;
import org.apache.olingo.commons.api.data.ValueType;
import org.apache.olingo.commons.api.format.ContentType;
import org.teiid.language.Condition;
import org.teiid.metadata.Column;
import org.teiid.metadata.ForeignKey;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.metadata.Table;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.document.DocumentNode;
public class ODataUpdateQuery extends ODataQuery {
private Map<String, Object> keys = new LinkedHashMap<String, Object>();
private Map<String, Object> expandKeys = new LinkedHashMap<String, Object>();
private List<Property> payloadProperties = new ArrayList<Property>();
private Condition condition;
public ODataUpdateQuery(ODataExecutionFactory executionFactory, RuntimeMetadata metadata) {
super(executionFactory, metadata);
}
public String buildInsertURL(String serviceRoot) throws TranslatorException {
URIBuilderImpl uriBuilder = new URIBuilderImpl(new ConfigurationImpl(), serviceRoot);
uriBuilder.appendEntitySetSegment(this.rootDocument.getName());
if (this.keys.size() == 1) {
uriBuilder.appendKeySegment(this.keys.values().iterator().next());
} else if (!this.keys.isEmpty()){
uriBuilder.appendKeySegment(this.keys);
}
if (!this.complexTables.isEmpty()) {
uriBuilder.appendPropertySegment(this.complexTables.get(0).getName());
}
if (!this.expandTables.isEmpty()) {
uriBuilder.appendPropertySegment(this.expandTables.get(0).getName());
}
URI uri = uriBuilder.build();
return uri.toString();
}
public String getInsertMethod() {
String method = "POST";
if (!this.complexTables.isEmpty()) {
if (this.complexTables.get(0).isCollection()) {
method = "PUT";
} else {
method = "PATCH";
}
}
if (!this.expandTables.isEmpty()) {
if (!this.expandTables.get(0).isCollection()) {
method = "PUT";
}
}
return method;
}
public String getPayload(Entity parentEntity) throws TranslatorException {
JsonSerializer serializer = new JsonSerializer(false, ContentType.APPLICATION_JSON);
StringWriter writer = new StringWriter();
try {
if (!this.complexTables.isEmpty()) {
Table table = this.complexTables.get(0).getTable();
Property complexProperty = new Property();
complexProperty.setName(getName(table));
complexProperty.setType(table.getProperty(ODataMetadataProcessor.NAME_IN_SCHEMA, false));
ComplexValue value = new ComplexValue();
for (Property p:this.payloadProperties) {
value.getValue().add(p);
}
if (this.complexTables.get(0).isCollection()) {
complexProperty.setValue(ValueType.COLLECTION_COMPLEX, Arrays.asList(value));
} else {
complexProperty.setValue(ValueType.COMPLEX, value);
}
serializer.write(writer, complexProperty);
} else if (!this.expandTables.isEmpty()) {
Table table = this.expandTables.get(0).getTable();
Entity entity = new Entity();
entity.setType(table.getProperty(
ODataMetadataProcessor.NAME_IN_SCHEMA, false));
for (Property p:this.payloadProperties) {
entity.addProperty(p);
}
serializer.write(writer, entity);
} else {
Entity entity = new Entity();
entity.setType(this.rootDocument.getTable().getProperty(
ODataMetadataProcessor.NAME_IN_SCHEMA, false));
for (Property p:this.payloadProperties) {
entity.addProperty(p);
}
// for updates
if (parentEntity != null) {
// add all the key properties.
List<Column> keys = this.rootDocument.getTable().getPrimaryKey().getColumns();
for (Column key: keys) {
entity.addProperty(parentEntity.getProperty(key.getName()));
}
}
serializer.write(writer, entity);
}
} catch (ODataSerializerException e) {
throw new TranslatorException(e);
}
return writer.toString();
}
private void buildKeyColumns(Table parentTable, Table childTable,
String columnName, Object value) {
if(parentTable.equals(childTable)) {
return;
}
for (ForeignKey fk:childTable.getForeignKeys()) {
if (fk.getReferenceTableName().equals(parentTable.getName())) {
List<Column> columns = fk.getColumns();
for (int i = 0; i < columns.size(); i++) {
Column fkColumn = columns.get(i);
if (fkColumn.getName().equals(columnName)) {
this.keys.put(fk.getReferenceColumns().get(i), value);
}
}
}
}
if (!this.expandTables.isEmpty()) {
if (childTable.getPrimaryKey() != null) {
for (Column column:childTable.getPrimaryKey().getColumns()) {
if (!isPseudo(column)) {
if (column.getName().equals(columnName)) {
this.expandKeys.put(columnName, value);
}
}
}
}
}
}
private boolean isPseudo(Column column) {
String property = column.getProperty(ODataMetadataProcessor.PSEUDO, false);
return property != null;
}
private String getName(Table table) {
if (table.getNameInSource() != null) {
return table.getNameInSource();
}
return table.getName();
}
public void addInsertProperty(Column column, String type, Object value) {
buildKeyColumns(getRootDocument().getTable(), (Table)column.getParent(), column.getName(), value);
addUpdateProperty(column, type, value);
}
public void addUpdateProperty(Column column, String type, Object value) {
boolean collection = (value instanceof List<?>);
if (!isPseudo(column)) {
this.payloadProperties.add(new Property(type, column.getName(),
collection ? ValueType.COLLECTION_PRIMITIVE
: ValueType.PRIMITIVE, value));
}
}
public void setCondition(Condition where) {
this.condition = where;
}
public String buildUpdateSelectionURL(String serviceRoot) throws TranslatorException {
URIBuilderImpl uriBuilder = new URIBuilderImpl(new ConfigurationImpl(), serviceRoot);
uriBuilder.appendEntitySetSegment(this.rootDocument.getName());
List<String> selection = this.rootDocument.getIdentityColumns();
uriBuilder.select(selection.toArray(new String[selection.size()]));
if (!this.expandTables.isEmpty()) {
ODataDocumentNode use = this.expandTables.get(0);
List<String> keys = use.getIdentityColumns();
for (String key:keys) {
use.appendSelect(key);
}
uriBuilder.expandWithOptions(use.getName(), use.getOptions());
}
String filter = processFilter(condition);
if (filter != null) {
uriBuilder.filter(filter);
}
URI uri = uriBuilder.build();
return uri.toString();
}
public String getUpdateMethod() {
String method = "PATCH";
if (!this.complexTables.isEmpty()) {
if (this.complexTables.get(0).isCollection()) {
method = "PUT";
} else {
method = "PATCH";
}
}
if (!this.expandTables.isEmpty()) {
if (!this.expandTables.get(0).isCollection()) {
method = "PUT";
}
}
return method;
}
public String buildUpdateURL(String serviceRoot, List<?> row) {
URIBuilderImpl uriBuilder = new URIBuilderImpl(new ConfigurationImpl(), serviceRoot);
uriBuilder.appendEntitySetSegment(this.rootDocument.getName());
List<String> selection = this.rootDocument.getIdentityColumns();
if (selection.size() == 1) {
uriBuilder.appendKeySegment(row.get(0));
} else if (!selection.isEmpty()) {
LinkedHashMap<String, Object> keys = new LinkedHashMap<String, Object>();
for (int i = 0; i < selection.size(); i++) {
keys.put(selection.get(i), row.get(i));
}
uriBuilder.appendKeySegment(keys);
}
if (!this.complexTables.isEmpty()) {
uriBuilder.appendPropertySegment(this.complexTables.get(0).getName());
}
if (!this.expandTables.isEmpty()) {
uriBuilder.appendPropertySegment(this.expandTables.get(0).getName());
// add keys if present
DocumentNode use = this.expandTables.get(0);
List<String> expandSelection = use.getIdentityColumns();
LinkedHashMap<String, Object> keys = new LinkedHashMap<String, Object>();
for (int i = 0; i < expandSelection.size(); i++) {
keys.put(expandSelection.get(i), row.get(selection.size()+i));
}
if (!keys.isEmpty()) {
uriBuilder.appendKeySegment(keys);
}
}
URI uri = uriBuilder.build();
return uri.toString();
}
}