/*
* 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.query.metadata;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.TreeMap;
import org.teiid.adminapi.impl.ModelMetaData;
import org.teiid.adminapi.impl.VDBMetaData;
import org.teiid.core.TeiidRuntimeException;
import org.teiid.core.types.DataTypeManager;
import org.teiid.core.types.DataTypeManager.DefaultDataTypes;
import org.teiid.core.util.Assertion;
import org.teiid.core.util.PropertiesUtils;
import org.teiid.metadata.Datatype;
import org.teiid.metadata.MetadataFactory;
import org.teiid.metadata.MetadataStore;
import org.teiid.metadata.Table;
import org.teiid.query.function.SystemFunctionManager;
import org.teiid.query.parser.QueryParser;
import org.teiid.query.validator.ValidatorReport;
public class SystemMetadata {
private static SystemMetadata INSTANCE = new SystemMetadata();
public static SystemMetadata getInstance() {
return INSTANCE;
}
private List<Datatype> dataTypes = new ArrayList<Datatype>();
private Map<String, Datatype> typeMap = new TreeMap<String, Datatype>(String.CASE_INSENSITIVE_ORDER);
private MetadataStore systemStore;
public SystemMetadata() {
InputStream is = SystemMetadata.class.getClassLoader().getResourceAsStream("org/teiid/metadata/types.dat"); //$NON-NLS-1$
try {
InputStreamReader isr = new InputStreamReader(is, Charset.forName("UTF-8")); //$NON-NLS-1$
BufferedReader br = new BufferedReader(isr);
String s = br.readLine();
String[] props = s.split("\\|"); //$NON-NLS-1$
while ((s = br.readLine()) != null) {
Datatype dt = new Datatype();
String[] vals = s.split("\\|"); //$NON-NLS-1$
Properties p = new Properties();
for (int i = 0; i < props.length; i++) {
if (vals[i].length() != 0) {
p.setProperty(props[i], new String(vals[i]));
}
}
PropertiesUtils.setBeanProperties(dt, p, null);
if ("string".equals(dt.getName())) { //$NON-NLS-1$
dt.setLength(DataTypeManager.MAX_STRING_LENGTH);
} else if ("varbinary".equals(dt.getName())) { //$NON-NLS-1$
dt.setLength(DataTypeManager.MAX_VARBINARY_BYTES);
}
dataTypes.add(dt);
if (dt.isBuiltin()) {
//we don't want to retain the conflicting designer names
if (!dt.getName().equals(dt.getRuntimeTypeName())) {
dt.setName(dt.getRuntimeTypeName());
}
typeMap.put(dt.getRuntimeTypeName(), dt);
}
}
is.close();
} catch (IOException e) {
throw new TeiidRuntimeException(e);
} finally {
try {
is.close();
} catch (IOException e) {
throw new TeiidRuntimeException(e);
}
}
addAliasType(DataTypeManager.DataTypeAliases.BIGINT);
addAliasType(DataTypeManager.DataTypeAliases.DECIMAL);
addAliasType(DataTypeManager.DataTypeAliases.REAL);
addAliasType(DataTypeManager.DataTypeAliases.SMALLINT);
addAliasType(DataTypeManager.DataTypeAliases.TINYINT);
addAliasType(DataTypeManager.DataTypeAliases.VARCHAR);
for (String name : DataTypeManager.getAllDataTypeNames()) {
if (!name.equals(DefaultDataTypes.NULL)) {
Assertion.isNotNull(typeMap.get(name), name);
}
}
VDBMetaData vdb = new VDBMetaData();
vdb.setName("System"); //$NON-NLS-1$
vdb.setVersion(1);
Properties p = new Properties();
QueryParser parser = new QueryParser();
systemStore = loadSchema(vdb, p, "SYS", parser).asMetadataStore(); //$NON-NLS-1$
systemStore.addDataTypes(typeMap);
loadSchema(vdb, p, "SYSADMIN", parser).mergeInto(systemStore); //$NON-NLS-1$
TransformationMetadata tm = new TransformationMetadata(vdb, new CompositeMetadataStore(systemStore), null, new SystemFunctionManager(typeMap).getSystemFunctions(), null);
vdb.addAttchment(QueryMetadataInterface.class, tm);
MetadataValidator validator = new MetadataValidator(this.typeMap, parser);
ValidatorReport report = validator.validate(vdb, systemStore);
if (report.hasItems()) {
throw new TeiidRuntimeException(report.getFailureMessage());
}
}
private MetadataFactory loadSchema(VDBMetaData vdb, Properties p, String name, QueryParser parser) {
ModelMetaData mmd = new ModelMetaData();
mmd.setName(name);
vdb.addModel(mmd);
InputStream is = SystemMetadata.class.getClassLoader().getResourceAsStream("org/teiid/metadata/"+name+".sql"); //$NON-NLS-1$ //$NON-NLS-2$
try {
MetadataFactory factory = new MetadataFactory(vdb.getName(), vdb.getVersion(), name, typeMap, p, null);
parser.parseDDL(factory, new InputStreamReader(is, Charset.forName("UTF-8"))); //$NON-NLS-1$
for (Table t : factory.getSchema().getTables().values()) {
t.setSystem(true);
}
return factory;
} finally {
try {
is.close();
} catch (IOException e) {
throw new TeiidRuntimeException(e);
}
}
}
private void addAliasType(String alias) {
Class<?> typeClass = DataTypeManager.getDataTypeClass(alias);
String primaryType = DataTypeManager.getDataTypeName(typeClass);
Datatype dt = typeMap.get(primaryType);
Assertion.isNotNull(dt, alias);
typeMap.put(alias, dt);
}
/**
* List of all "built-in" datatypes. Note that the datatype names do not necessarily match the corresponding runtime type names i.e. int vs. integer
* @return
*/
public List<Datatype> getDataTypes() {
return dataTypes;
}
/**
* Map of runtime types and aliases to runtime datatypes
* @return
*/
public Map<String, Datatype> getRuntimeTypeMap() {
return typeMap;
}
public MetadataStore getSystemStore() {
return systemStore;
}
}