/*
* DBeaver - Universal Database Manager
* Copyright (C) 2016-2016 Karl Griesser (fullref@gmail.com)
* Copyright (C) 2010-2017 Serge Rider (serge@jkiss.org)
*
* Licensed 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.jkiss.dbeaver.ext.exasol.model;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collection;
import java.util.Collections;
import org.jkiss.code.NotNull;
import org.jkiss.dbeaver.DBException;
import org.jkiss.dbeaver.ext.exasol.editors.ExasolSourceObject;
import org.jkiss.dbeaver.ext.exasol.tools.ExasolUtils;
import org.jkiss.dbeaver.model.DBPEvaluationContext;
import org.jkiss.dbeaver.model.DBUtils;
import org.jkiss.dbeaver.model.exec.DBCException;
import org.jkiss.dbeaver.model.exec.jdbc.JDBCResultSet;
import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
import org.jkiss.dbeaver.model.exec.jdbc.JDBCStatement;
import org.jkiss.dbeaver.model.impl.jdbc.JDBCUtils;
import org.jkiss.dbeaver.model.impl.jdbc.cache.JDBCStructCache;
import org.jkiss.dbeaver.model.meta.Property;
import org.jkiss.dbeaver.model.runtime.DBRProgressMonitor;
import org.jkiss.dbeaver.model.runtime.VoidProgressMonitor;
import org.jkiss.dbeaver.model.sql.SQLUtils;
import org.jkiss.dbeaver.model.struct.DBSEntityAssociation;
import org.jkiss.dbeaver.model.struct.DBSObject;
import org.jkiss.dbeaver.model.struct.DBSObjectState;
public class ExasolView extends ExasolTableBase implements ExasolSourceObject {
private String owner;
private Boolean hasRead = false;
private String text;
public ExasolView(ExasolSchema schema, String name, boolean persisted) {
super(schema, name, persisted);
}
public ExasolView(DBRProgressMonitor monitor, ExasolSchema schema, ResultSet dbResult) {
super(monitor, schema, dbResult);
hasRead=false;
}
public ExasolView(ExasolSchema schema)
{
super(schema,null,false);
text = "";
hasRead = true;
}
@Override
public DBSObjectState getObjectState() {
return DBSObjectState.NORMAL;
}
@Override
@Property(viewable = true, editable = false, updatable = false, order = 40)
public String getDescription() {
return super.getDescription();
}
// -----------------
// Properties
// -----------------
@NotNull
@Property(viewable = true, order = 100)
public String getOwner() throws DBCException {
read();
return owner;
}
private void read() throws DBCException
{
if (!hasRead)
{
JDBCSession session = DBUtils.openMetaSession(new VoidProgressMonitor(), getDataSource(), "Read Table Details");
try (JDBCStatement stmt = session.createStatement())
{
String sql = String.format("SELECT VIEW_OWNER,VIEW_TEXT FROM SYS.EXA_ALL_VIEWS WHERE VIEW_SCHEMA = '%s' and VIEW_NAME = '%s'",
ExasolUtils.quoteString(this.getSchema().getName()),
ExasolUtils.quoteString(this.getName())
);
try (JDBCResultSet dbResult = stmt.executeQuery(sql))
{
Boolean read = dbResult.next();
if (read) {
this.owner = JDBCUtils.safeGetString(dbResult, "VIEW_OWNER");
this.text = JDBCUtils.safeGetString(dbResult, "VIEW_TEXT");
this.hasRead = true;
} else {
this.owner = "SYS OBJECT";
this.text = "No View Text for system objects available";
}
this.hasRead = true;
}
} catch (SQLException e) {
throw new DBCException(e,getDataSource());
}
}
}
@Override
public boolean isView() {
return true;
}
// -----------------
// Business Contract
// -----------------
@Override
public void refreshObjectState(@NotNull DBRProgressMonitor monitor) throws DBCException {
}
@NotNull
@Override
public String getFullyQualifiedName(DBPEvaluationContext context) {
return DBUtils.getFullQualifiedName(getDataSource(), getSchema(), this);
}
@Override
public DBSObject refreshObject(@NotNull DBRProgressMonitor monitor) throws DBException {
super.refreshObject(monitor);
//force reading of attributes
hasRead = false;
return this;
}
// -----------------
// Associations (Imposed from DBSTable). In Exasol, Most of objects "derived"
// from Tables don't have those..
// -----------------
@Override
public Collection<? extends DBSEntityAssociation> getReferences(@NotNull DBRProgressMonitor monitor) throws DBException {
return Collections.emptyList();
}
@Override
public Collection<ExasolTableForeignKey> getAssociations(@NotNull DBRProgressMonitor monitor) throws DBException {
return Collections.emptyList();
}
@Override
@Property(hidden = true, editable = true, updatable = true, order = -1)
public String getObjectDefinitionText(DBRProgressMonitor monitor) throws DBException {
read();
return SQLUtils.formatSQL(getDataSource(), this.text);
}
@Override
public void setObjectDefinitionText(String sourceText) throws DBException
{
this.text = sourceText;
}
public String getSource() throws DBCException
{
read();
return this.text;
}
@Override
public JDBCStructCache<ExasolSchema, ExasolView, ExasolTableColumn> getCache() {
return getContainer().getViewCache();
}
}