/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, availible at the root
* application directory.
*/
package org.geoserver.data.test;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.logging.Logger;
import org.geoserver.data.util.IOUtils;
import org.geotools.data.DataStore;
import org.geotools.data.DataStoreFinder;
import org.geotools.data.Transaction;
import org.geotools.data.jdbc.JDBCDataStore;
import org.geotools.data.jdbc.JDBCUtils;
import org.geotools.util.logging.Logging;
/**
* Extends LiveData to deal with the needs of a data directory that uses a DBMS
* among its data stores. In particular it provides:
* <ul>
* <li>Facilities to replace templates in configuration files, so that the
* connection parameters can be replaced with the local version (provided as a
* key, value map)</li>
* <li>Facilities to setup the database structure from a sql script. The sql
* must have each command on a single line</li>
* </ul>
*
* @author Andrea Aime - TOPP
*
*/
public class LiveDbmsData extends LiveData {
private static final Logger LOGGER = Logging.getLogger(LiveDbmsData.class);
/**
* The property file containing the token -> value pairs used for filtering
* and to grab a JDBC datastore connection.
*
* @return
*/
protected File fixture;
/**
* List of file paths (relative to the source data directory) that will be
* subjected to token filtering. By default only <code>catalog.xml</code>
* will be filtered.
*/
protected List<String> filteredPaths = new ArrayList<String>(Arrays.asList("catalog.xml"));
protected File sqlScript;
/**
* Can be used to make sure the datastore used to grab connections is
* disposed of
*/
protected DataStore ds;
/**
* The identifier of the fixture, which is also the name of the file (followed by .properties)
* and the system property used to disable the test (prefixed by gs.)
*/
protected String fixtureId;
/**
* Builds a new LiveDbmsData with the minimal parameter needed:
* <ul>
* <li>the source data directory to be copied</li>
* <li>the path to a property file containing the set of parameters
* required to grab a connection with a jdbc datastore, which will be also
* used to filter out the files during copy (by default, only catalog.xml)</li>
* <li>the location of the sql script used to initialize the database (this
* one can be null if no initialization is needed). It's advisable to prepare
* a sql script that first drops all tables and views and then recreates them,
* if a statement fails it'll be logged and skipped anyways. This makes it possible
* to inspect the database contents </li>
*
* @param dataDirSourceDirectory
* @param filterMap
* @param sqlScript
*/
public LiveDbmsData(File dataDirSourceDirectory, String fixtureId, File sqlScript) {
super(dataDirSourceDirectory);
this.fixture = lookupFixture(fixtureId);
this.fixtureId = fixtureId;
this.sqlScript = sqlScript;
}
/**
* Looks up the fixture file in the home directory provided that the
* @param fixtureId
* @return
*/
private File lookupFixture(String fixtureId) {
// first of all, make sure the fixture was not disabled using a system
// variable
final String property = System.getProperty("gs." + fixtureId);
if (property != null && "false".equals(property.toLowerCase())) {
return null;
}
// then look in the user home directory
File base = new File(System.getProperty("user.home"), ".geoserver");
// create the hidden folder, this is handy especially on windows where
// a user cannot create a directory starting with . from the UI
// (works only from the command line)
if(!base.exists())
base.mkdir();
File fixtureFile = new File(base, fixtureId + ".properties");
if (!fixtureFile.exists()) {
final String warning = "Disabling test based on fixture " + fixtureId + " since the file "
+ fixtureFile + " could not be found";
disableTest(warning);
return null;
}
return fixtureFile;
}
public boolean isTestDataAvailable() {
return fixture != null;
}
@Override
public void setUp() throws Exception {
// if the test was disabled we don't need to run the setup
if (fixture == null)
return;
super.setUp();
// load the properties from the fixture path and load them into a
// Map<String, String>
Properties p = new Properties();
p.load(new FileInputStream(fixture));
Map<String, String> filters = new HashMap(p);
// replace the keys contained in catalog.xml with the actual values
if (filteredPaths != null && filteredPaths.size() > 0) {
for (String path : filteredPaths) {
File from = new File(source, path);
File to = new File(data, path);
IOUtils.filteredCopy(from, to, filters);
}
}
// populate the db
if (sqlScript != null) {
DataStore ds = null;
Connection conn = null;
Statement st = null;
BufferedReader reader = null;
try {
ds = DataStoreFinder.getDataStore(filters);
if (ds == null) {
final String warning = "Disabling online test based on '" + fixtureId + "', "
+ "could not find a data store compatible "
+ "with the following connection properties: " + filters;
disableTest(warning);
return;
}
if (ds instanceof JDBCDataStore) {
conn = ((JDBCDataStore) ds).getConnection(Transaction.AUTO_COMMIT);
}
// TODO: add a way to extract a connection from the new JDBC
// datastores
if (conn == null) {
final String warning = "Disabling online test based on '" + fixtureId + "', "
+ "could not extract a JDBC connection from the datastore '"
+ ds.getClass() + " obtained using the following "
+ "connection properties: " + filters;
disableTest(warning);
return;
}
// read the script and run the setup commands
reader = new BufferedReader(new FileReader(sqlScript));
st = conn.createStatement();
String command = null;
while ((command = reader.readLine()) != null) {
command = command.trim();
// skip comments and empty lines
if ("".equals(command) || command.startsWith("--") || command.startsWith("#"))
continue;
// execute but do not complain, only log the failures
try {
st.execute(command);
} catch (SQLException e) {
LOGGER.warning("Error executing \"" + command + "\": " + e.getMessage());
}
}
} finally {
JDBCUtils.close(st);
JDBCUtils.close(conn, null, null);
// very important, or we'll leak connection pools during
// execution
if (ds != null)
ds.dispose();
if (reader != null)
reader.close();
}
}
}
/**
* Returns the filtered paths list as a live list (can be modified directly)
* @return
*/
public List<String> getFilteredPaths() {
return filteredPaths;
}
/**
* Permanently disable this test logging the specificed warning message (the reason
* why the test is being disabled)
* @param warning
*/
private void disableTest(final String warning) {
LOGGER.warning(warning);
fixture = null;
System.setProperty("gs." + fixtureId, "false");
}
}