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liquibase.parser.core.xml.XMLChangeLogSAXHandler Maven / Gradle / Ivy
package liquibase.parser.core.xml;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLDecoder;
import java.util.*;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import liquibase.change.Change;
import liquibase.change.ChangeFactory;
import liquibase.change.ChangeWithColumns;
import liquibase.change.ColumnConfig;
import liquibase.change.ConstraintsConfig;
import liquibase.change.core.AbstractModifyDataChange;
import liquibase.change.core.CreateProcedureChange;
import liquibase.change.core.CreateViewChange;
import liquibase.change.core.ExecuteShellCommandChange;
import liquibase.change.core.InsertDataChange;
import liquibase.change.core.LoadDataChange;
import liquibase.change.core.LoadDataColumnConfig;
import liquibase.change.core.RawSQLChange;
import liquibase.change.core.StopChange;
import liquibase.change.core.UpdateDataChange;
import liquibase.change.custom.CustomChangeWrapper;
import liquibase.changelog.ChangeLogParameters;
import liquibase.changelog.ChangeSet;
import liquibase.changelog.DatabaseChangeLog;
import liquibase.database.ObjectQuotingStrategy;
import liquibase.exception.CustomChangeException;
import liquibase.exception.LiquibaseException;
import liquibase.exception.MigrationFailedException;
import liquibase.exception.UnknownChangelogFormatException;
import liquibase.logging.LogFactory;
import liquibase.logging.Logger;
import liquibase.parser.ChangeLogParserFactory;
import liquibase.precondition.CustomPreconditionWrapper;
import liquibase.precondition.Precondition;
import liquibase.precondition.PreconditionFactory;
import liquibase.precondition.PreconditionLogic;
import liquibase.precondition.core.PreconditionContainer;
import liquibase.precondition.core.SqlPrecondition;
import liquibase.resource.ResourceAccessor;
import liquibase.sql.visitor.SqlVisitor;
import liquibase.sql.visitor.SqlVisitorFactory;
import liquibase.util.FileUtil;
import liquibase.util.ObjectUtil;
import liquibase.util.StringUtils;
import liquibase.util.file.FilenameUtils;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
class XMLChangeLogSAXHandler extends DefaultHandler {
private static final char LIQUIBASE_FILE_SEPARATOR = '/';
private final ChangeFactory changeFactory;
private final PreconditionFactory preconditionFactory;
private final SqlVisitorFactory sqlVisitorFactory;
private final ChangeLogParserFactory changeLogParserFactory;
protected Logger log;
private DatabaseChangeLog databaseChangeLog;
private Change change;
private Stack changeSubObjects = new Stack();
private StringBuffer text;
private PreconditionContainer rootPrecondition;
private Stack preconditionLogicStack = new Stack();
private ChangeSet changeSet;
private String paramName;
private ResourceAccessor resourceAccessor;
private Precondition currentPrecondition;
private ChangeLogParameters changeLogParameters;
private boolean inRollback = false;
private boolean inModifySql = false;
private Set modifySqlDbmsList;
private Set modifySqlContexts;
private boolean modifySqlAppliedOnRollback = false;
protected XMLChangeLogSAXHandler(String physicalChangeLogLocation,
ResourceAccessor resourceAccessor,
ChangeLogParameters changeLogParameters) {
log = LogFactory.getLogger();
this.resourceAccessor = resourceAccessor;
databaseChangeLog = new DatabaseChangeLog();
databaseChangeLog.setPhysicalFilePath(physicalChangeLogLocation);
databaseChangeLog.setChangeLogParameters(changeLogParameters);
this.changeLogParameters = changeLogParameters;
changeFactory = ChangeFactory.getInstance();
preconditionFactory = PreconditionFactory.getInstance();
sqlVisitorFactory = SqlVisitorFactory.getInstance();
changeLogParserFactory = ChangeLogParserFactory.getInstance();
}
public DatabaseChangeLog getDatabaseChangeLog() {
return databaseChangeLog;
}
@Override
public void startElement(String uri, String localName, String qName,
Attributes baseAttributes) throws SAXException {
Attributes atts = new ExpandingAttributes(baseAttributes);
try {
if ("comment".equals(qName)) {
text = new StringBuffer();
} else if ("validCheckSum".equals(qName)) {
text = new StringBuffer();
} else if ("databaseChangeLog".equals(qName)) {
String schemaLocation = atts.getValue("xsi:schemaLocation");
if (schemaLocation != null) {
Matcher matcher = Pattern.compile(
".*dbchangelog-(\\d+\\.\\d+).xsd").matcher(
schemaLocation);
if (matcher.matches()) {
String version = matcher.group(1);
if (!version.equals(XMLChangeLogSAXParser
.getSchemaVersion())) {
log.warning(databaseChangeLog.getPhysicalFilePath()
+ " is using schema version " + version
+ " rather than version "
+ XMLChangeLogSAXParser.getSchemaVersion());
}
}
}
databaseChangeLog.setLogicalFilePath(atts
.getValue("logicalFilePath"));
ObjectQuotingStrategy quotingStrategy = ObjectQuotingStrategy.LEGACY;
String quotingStrategyText = atts.getValue("objectQuotingStrategy");
if (quotingStrategyText != null) {
quotingStrategy = ObjectQuotingStrategy.valueOf(quotingStrategyText);
}
databaseChangeLog.setObjectQuotingStrategy(quotingStrategy);
} else if ("include".equals(qName)) {
String fileName = atts.getValue("file");
fileName = fileName.replace('\\', '/');
boolean isRelativeToChangelogFile = Boolean.parseBoolean(atts
.getValue("relativeToChangelogFile"));
handleIncludedChangeLog(fileName, isRelativeToChangelogFile,
databaseChangeLog.getPhysicalFilePath());
} else if ("includeAll".equals(qName)) {
String pathName = atts.getValue("path");
pathName = pathName.replace('\\', '/');
if (!(pathName.endsWith("/"))) {
pathName = pathName + '/';
}
log.debug("includeAll for " + pathName);
log.debug("Using file opener for includeAll: " + resourceAccessor.toString());
boolean isRelativeToChangelogFile = Boolean.parseBoolean(atts
.getValue("relativeToChangelogFile"));
String resourceFilterDef = atts.getValue("resourceFilter");
IncludeAllFilter resourceFilter = null;
if (resourceFilterDef != null) {
resourceFilter = (IncludeAllFilter) Class.forName(resourceFilterDef).newInstance();
}
if (isRelativeToChangelogFile) {
File changeLogFile = null;
Enumeration resources = resourceAccessor.getResources(databaseChangeLog.getPhysicalFilePath());
while (resources.hasMoreElements()) {
try {
changeLogFile = new File(resources.nextElement().toURI());
} catch (URISyntaxException e) {
continue; //ignore error, probably a URL or something like that
}
if (changeLogFile.exists()) {
break;
} else {
changeLogFile = null;
}
}
if (changeLogFile == null) {
throw new SAXException("Cannot determine physical location of "+databaseChangeLog.getPhysicalFilePath());
}
File resourceBase = new File(changeLogFile.getParentFile(), pathName);
if (!resourceBase.exists()) {
throw new SAXException("Resource directory for includeAll does not exist [" + resourceBase.getAbsolutePath() + "]");
}
pathName = resourceBase.getPath() + '/';
pathName = pathName.replace('\\', '/');
}
Enumeration resourcesEnum = resourceAccessor.getResources(pathName);
SortedSet resources = new TreeSet(new Comparator() {
@Override
public int compare(URL o1, URL o2) {
return o1.toString().compareTo(o2.toString());
}
});
while (resourcesEnum.hasMoreElements()) {
resources.add(resourcesEnum.nextElement());
}
boolean foundResource = false;
Set seenPaths = new HashSet();
List includedChangeLogs = new LinkedList();
for (URL fileUrl : resources) {
if (!fileUrl.toExternalForm().startsWith("file:")) {
if (fileUrl.toExternalForm().startsWith("jar:file:") || fileUrl.toExternalForm().startsWith("wsjar:file:") || fileUrl.toExternalForm().startsWith("zip:")) {
File zipFileDir = extractZipFile(fileUrl);
fileUrl = new File(zipFileDir, pathName).toURL();
} else {
log.debug(fileUrl.toExternalForm()
+ " is not a file path");
continue;
}
}
File file = new File(fileUrl.toURI());
log.debug("includeAll using path "
+ file.getCanonicalPath());
if (!file.exists()) {
throw new SAXException("includeAll path " + pathName
+ " could not be found. Tried in "
+ file.toString());
}
if (file.isDirectory()) {
log.debug(file.getCanonicalPath() + " is a directory");
for (File childFile : new TreeSet(Arrays.asList(file.listFiles()))) {
String path = pathName+ childFile.getName();
if (!seenPaths.add(path)) {
log.debug("already included "+path);
continue;
}
includedChangeLogs.add(path);
}
} else {
String path = pathName + file.getName();
if (!seenPaths.add(path)) {
log.debug("already included "+path);
continue;
}
includedChangeLogs.add(path);
}
}
if (resourceFilter != null) {
includedChangeLogs = resourceFilter.filter(includedChangeLogs);
}
for (String path : includedChangeLogs) {
if (handleIncludedChangeLog(path, false, databaseChangeLog.getPhysicalFilePath())) {
foundResource = true;
}
}
if (!foundResource) {
throw new SAXException( "Could not find directory or directory was empty for includeAll '" + pathName + "'");
}
} else if (changeSet == null && "changeSet".equals(qName)) {
boolean alwaysRun = false;
boolean runOnChange = false;
if ("true".equalsIgnoreCase(atts.getValue("runAlways"))) {
alwaysRun = true;
}
if ("true".equalsIgnoreCase(atts.getValue("runOnChange"))) {
runOnChange = true;
}
String filePath = atts.getValue("logicalFilePath");
if (filePath == null || "".equals(filePath)) {
filePath = databaseChangeLog.getFilePath();
}
ObjectQuotingStrategy quotingStrategy = databaseChangeLog.getObjectQuotingStrategy();
String quotingStrategyText = atts.getValue("objectQuotingStrategy");
if (quotingStrategyText != null) {
quotingStrategy = ObjectQuotingStrategy.valueOf(quotingStrategyText);
}
changeSet = new ChangeSet(atts.getValue("id"), atts.getValue("author"), alwaysRun, runOnChange, filePath,
atts.getValue("context"), atts.getValue("dbms"),
Boolean.valueOf(atts.getValue("runInTransaction")), quotingStrategy, databaseChangeLog);
if (StringUtils.trimToNull(atts.getValue("failOnError")) != null) {
changeSet.setFailOnError(Boolean.parseBoolean(atts.getValue("failOnError")));
}
if (StringUtils.trimToNull(atts.getValue("onValidationFail")) != null) {
changeSet.setOnValidationFail(ChangeSet.ValidationFailOption.valueOf(atts.getValue("onValidationFail")));
}
changeSet.setChangeLogParameters(changeLogParameters);
} else if (changeSet != null && "rollback".equals(qName)) {
text = new StringBuffer();
String id = atts.getValue("changeSetId");
if (id != null) {
String path = atts.getValue("changeSetPath");
if (path == null) {
path = databaseChangeLog.getFilePath();
}
String author = atts.getValue("changeSetAuthor");
ChangeSet changeSet = databaseChangeLog.getChangeSet(path,
author, id);
if (changeSet == null) {
throw new SAXException(
"Could not find changeSet to use for rollback: "
+ path + ":" + author + ":" + id);
} else {
for (Change change : changeSet.getChanges()) {
this.changeSet.addRollbackChange(change);
}
}
}
inRollback = true;
} else if ("preConditions".equals(qName)) {
rootPrecondition = new PreconditionContainer();
rootPrecondition.setOnFail(StringUtils.trimToNull(atts
.getValue("onFail")));
rootPrecondition.setOnError(StringUtils.trimToNull(atts
.getValue("onError")));
rootPrecondition.setOnFailMessage(StringUtils.trimToNull(atts
.getValue("onFailMessage")));
rootPrecondition.setOnErrorMessage(StringUtils.trimToNull(atts
.getValue("onErrorMessage")));
rootPrecondition.setOnSqlOutput(StringUtils.trimToNull(atts
.getValue("onSqlOutput")));
preconditionLogicStack.push(rootPrecondition);
} else if (currentPrecondition != null && currentPrecondition instanceof CustomPreconditionWrapper && qName.equals("param")) {
((CustomPreconditionWrapper) currentPrecondition).setParam(atts.getValue("name"), atts.getValue("value"));
} else if (rootPrecondition != null) {
currentPrecondition = preconditionFactory.create(localName);
for (int i = 0; i < atts.getLength(); i++) {
String attributeName = atts.getLocalName(i);
String attributeValue = atts.getValue(i);
setProperty(currentPrecondition, attributeName,
attributeValue);
}
preconditionLogicStack.peek().addNestedPrecondition(
currentPrecondition);
if (currentPrecondition instanceof PreconditionLogic) {
preconditionLogicStack
.push(((PreconditionLogic) currentPrecondition));
}
if ("sqlCheck".equals(qName)) {
text = new StringBuffer();
}
} else if ("modifySql".equals(qName)) {
inModifySql = true;
if (StringUtils.trimToNull(atts.getValue("dbms")) != null) {
modifySqlDbmsList = new HashSet(StringUtils
.splitAndTrim(atts.getValue("dbms"), ","));
}
if (StringUtils.trimToNull(atts.getValue("context")) != null) {
modifySqlContexts = new HashSet(StringUtils
.splitAndTrim(atts.getValue("context"), ","));
}
if (StringUtils.trimToNull(atts.getValue("applyToRollback")) != null) {
modifySqlAppliedOnRollback = Boolean.valueOf(atts
.getValue("applyToRollback"));
}
} else if (inModifySql) {
SqlVisitor sqlVisitor = sqlVisitorFactory.create(localName);
for (int i = 0; i < atts.getLength(); i++) {
String attributeName = atts.getLocalName(i);
String attributeValue = atts.getValue(i);
setProperty(sqlVisitor, attributeName, attributeValue);
}
sqlVisitor.setApplicableDbms(modifySqlDbmsList);
sqlVisitor.setApplyToRollback(modifySqlAppliedOnRollback);
sqlVisitor.setContexts(modifySqlContexts);
changeSet.addSqlVisitor(sqlVisitor);
} else if (changeSet != null && change == null) {
change = changeFactory.create(localName);
if (change == null) {
throw new SAXException("Unknown Liquibase extension: "
+ localName
+ ". Are you missing a jar from your classpath?");
}
change.setChangeSet(changeSet);
text = new StringBuffer();
if (change == null) {
throw new MigrationFailedException(changeSet,
"Unknown change: " + localName);
}
change.setResourceAccessor(resourceAccessor);
if (change instanceof CustomChangeWrapper) {
((CustomChangeWrapper) change)
.setClassLoader(resourceAccessor.toClassLoader());
}
for (int i = 0; i < atts.getLength(); i++) {
String attributeName = atts.getLocalName(i);
String attributeValue = atts.getValue(i);
setProperty(change, attributeName, attributeValue);
}
change.finishInitialization();
} else if (change != null && "column".equals(qName)) {
ColumnConfig column;
if (change instanceof LoadDataChange) {
column = new LoadDataColumnConfig();
} else {
column = new ColumnConfig();
}
populateColumnFromAttributes(atts, column);
if (change instanceof ChangeWithColumns) {
((ChangeWithColumns) change).addColumn(column);
} else {
throw new RuntimeException("Unexpected column tag for "
+ change.getClass().getName());
}
} else if (change != null && "whereParams".equals(qName)) {
if (!(change instanceof AbstractModifyDataChange)) {
throw new RuntimeException("Unexpected change: "
+ change.getClass().getName());
}
} else if (change != null && change instanceof AbstractModifyDataChange && "param".equals(qName)) {
ColumnConfig param = new ColumnConfig();
populateColumnFromAttributes(atts, param);
((AbstractModifyDataChange) change).addWhereParam(param);
}
else if (change != null && "constraints".equals(qName)) {
ConstraintsConfig constraints = new ConstraintsConfig();
for (int i = 0; i < atts.getLength(); i++) {
String attributeName = atts.getLocalName(i);
String attributeValue = atts.getValue(i);
setProperty(constraints, attributeName, attributeValue);
}
ColumnConfig lastColumn = null;
if (change instanceof ChangeWithColumns) {
List columns = ((ChangeWithColumns) change).getColumns();
if (columns != null && columns.size() > 0) {
lastColumn = columns.get(columns.size() - 1);
}
} else {
throw new RuntimeException("Unexpected change: "
+ change.getClass().getName());
}
if (lastColumn == null) {
throw new RuntimeException("Could not determine column to add constraint to");
}
lastColumn.setConstraints(constraints);
} else if ("param".equals(qName) && change instanceof CustomChangeWrapper) {
if (atts.getValue("value") == null) {
paramName = atts.getValue("name");
text = new StringBuffer();
} else {
((CustomChangeWrapper) change).setParam(atts
.getValue("name"), atts.getValue("value"));
}
} else if ("where".equals(qName)) {
text = new StringBuffer();
} else if ("property".equals(qName)) {
String context = StringUtils.trimToNull(atts.getValue("context"));
String dbms = StringUtils.trimToNull(atts.getValue("dbms"));
if (StringUtils.trimToNull(atts.getValue("file")) == null) {
this.changeLogParameters.set(atts.getValue("name"), atts.getValue("value"), context, dbms);
} else {
Properties props = new Properties();
InputStream propertiesStream = resourceAccessor.getResourceAsStream(atts.getValue("file"));
if (propertiesStream == null) {
log.info("Could not open properties file "
+ atts.getValue("file"));
} else {
props.load(propertiesStream);
for (Map.Entry entry : props.entrySet()) {
this.changeLogParameters.set(entry.getKey().toString(), entry.getValue().toString(), context, dbms);
}
}
}
} else if (change instanceof ExecuteShellCommandChange
&& "arg".equals(qName)) {
((ExecuteShellCommandChange) change).addArg(atts
.getValue("value"));
} else if (change != null) {
String creatorMethod = "create"
+ localName.substring(0, 1).toUpperCase()
+ localName.substring(1);
Object objectToCreateFrom;
if (changeSubObjects.size() == 0) {
objectToCreateFrom = change;
} else {
objectToCreateFrom = changeSubObjects.peek();
}
Method method;
try {
method = objectToCreateFrom.getClass().getMethod(
creatorMethod);
} catch (NoSuchMethodException e) {
throw new MigrationFailedException(changeSet,
"Could not find creator method " + creatorMethod
+ " for tag: " + localName);
}
Object subObject = method.invoke(objectToCreateFrom);
for (int i = 0; i < atts.getLength(); i++) {
String attributeName = atts.getLocalName(i);
String attributeValue = atts.getValue(i);
setProperty(subObject, attributeName, attributeValue);
}
changeSubObjects.push(subObject);
} else {
throw new MigrationFailedException(changeSet,
"Unexpected tag: " + localName);
}
} catch (Exception e) {
log.severe("Error thrown as a SAXException: " + e.getMessage(), e);
e.printStackTrace();
throw new SAXException(e);
}
}
private void populateColumnFromAttributes(Attributes atts, ColumnConfig column) throws IllegalAccessException, InvocationTargetException, CustomChangeException {
for (int i = 0; i < atts.getLength(); i++) {
String attributeName = atts.getLocalName(i);
String attributeValue = atts.getValue(i);
setProperty(column, attributeName, attributeValue);
}
}
protected boolean handleIncludedChangeLog(String fileName,
boolean isRelativePath, String relativeBaseFileName)
throws LiquibaseException {
if (fileName.equalsIgnoreCase(".svn") || fileName.equalsIgnoreCase("cvs")) {
return false;
}
if (isRelativePath) {
// workaround for FilenameUtils.normalize() returning null for relative paths like ../conf/liquibase.xml
String tempFile = FilenameUtils.concat(FilenameUtils.getFullPath(relativeBaseFileName), fileName);
if(tempFile != null && new File(tempFile).exists() == true) {
fileName = tempFile;
} else {
fileName = FilenameUtils.getFullPath(relativeBaseFileName) + fileName;
}
}
DatabaseChangeLog changeLog;
try {
changeLog= changeLogParserFactory.getParser(fileName, resourceAccessor).parse(fileName, changeLogParameters,
resourceAccessor);
} catch (UnknownChangelogFormatException e) {
log.warning("included file "+relativeBaseFileName + "/" + fileName + " is not a recognized file type");
return false;
}
PreconditionContainer preconditions = changeLog.getPreconditions();
if (preconditions != null) {
if (null == databaseChangeLog.getPreconditions()) {
databaseChangeLog.setPreconditions(new PreconditionContainer());
}
databaseChangeLog.getPreconditions().addNestedPrecondition(
preconditions);
}
for (ChangeSet changeSet : changeLog.getChangeSets()) {
handleChangeSet(changeSet);
}
return true;
}
private void setProperty(Object object, String attributeName,
String attributeValue) throws IllegalAccessException,
InvocationTargetException, CustomChangeException {
if (object instanceof CustomChangeWrapper) {
if (attributeName.equals("class")) {
((CustomChangeWrapper) object).setClass(changeLogParameters
.expandExpressions(attributeValue));
} else {
((CustomChangeWrapper) object).setParam(attributeName,
changeLogParameters.expandExpressions(attributeValue));
}
} else {
ObjectUtil.setProperty(object, attributeName, changeLogParameters
.expandExpressions(attributeValue));
}
}
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
String textString = null;
if (text != null && text.length() > 0) {
textString = changeLogParameters.expandExpressions(StringUtils
.trimToNull(text.toString()));
}
try {
if (changeSubObjects.size() > 0) {
changeSubObjects.pop();
} else if (rootPrecondition != null) {
if ("preConditions".equals(qName)) {
if (changeSet == null) {
databaseChangeLog.setPreconditions(rootPrecondition);
handlePreCondition(rootPrecondition);
} else {
changeSet.setPreconditions(rootPrecondition);
}
rootPrecondition = null;
} else if ("and".equals(qName)) {
preconditionLogicStack.pop();
currentPrecondition = null;
} else if ("or".equals(qName)) {
preconditionLogicStack.pop();
currentPrecondition = null;
} else if ("not".equals(qName)) {
preconditionLogicStack.pop();
currentPrecondition = null;
} else if (qName.equals("sqlCheck")) {
((SqlPrecondition) currentPrecondition).setSql(textString);
currentPrecondition = null;
} else if (qName.equals("customPrecondition")) {
((CustomPreconditionWrapper) currentPrecondition).setClassLoader(resourceAccessor.toClassLoader());
currentPrecondition = null;
}
} else if (changeSet != null && "rollback".equals(qName)) {
changeSet.addRollBackSQL(textString);
inRollback = false;
} else if (change != null && change instanceof RawSQLChange
&& "comment".equals(qName)) {
((RawSQLChange) change).setComment(textString);
text = new StringBuffer();
} else if (change != null && "where".equals(qName)) {
if (change instanceof AbstractModifyDataChange) {
((AbstractModifyDataChange) change).setWhere(textString);
} else {
throw new RuntimeException("Unexpected change type: "
+ change.getClass().getName());
}
text = new StringBuffer();
} else if (change != null
&& change instanceof CreateProcedureChange
&& "comment".equals(qName)) {
((CreateProcedureChange) change).setComments(textString);
text = new StringBuffer();
} else if (change != null && change instanceof CustomChangeWrapper
&& paramName != null && "param".equals(qName)) {
((CustomChangeWrapper) change).setParam(paramName, textString);
text = new StringBuffer();
paramName = null;
} else if (changeSet != null && "comment".equals(qName)) {
changeSet.setComments(textString);
text = new StringBuffer();
} else if (changeSet != null && "changeSet".equals(qName)) {
handleChangeSet(changeSet);
changeSet = null;
} else if (change != null && qName.equals("column")
&& textString != null) {
if (change instanceof InsertDataChange) {
List columns = ((InsertDataChange) change).getColumns();
columns.get(columns.size() - 1).setValue(textString);
} else if (change instanceof UpdateDataChange) {
List columns = ((UpdateDataChange) change).getColumns();
columns.get(columns.size() - 1).setValue(textString);
} else {
throw new RuntimeException("Unexpected column with text: " + textString);
}
this.text = new StringBuffer();
} else if (change != null && change instanceof AbstractModifyDataChange && qName.equals("param")
&& textString != null) {
List columns = ((AbstractModifyDataChange) change)
.getWhereParams();
columns.get(columns.size() - 1).setValue(textString);
this.text = new StringBuffer();
} else if (change != null
&& localName.equals(changeFactory.getChangeMetaData(change).getName())) {
if (textString != null) {
if (change instanceof RawSQLChange) {
// We've already expanded expressions when we defined 'textString' above. If we enabled
// escaping, we cannot re-expand; the now-literal variables in the text would get
// incorrectly expanded. If we haven't enabled escaping, then retain the current behavior.
String expandedExpression = textString;
if (false == ChangeLogParameters.EnableEscaping) {
expandedExpression = changeLogParameters.expandExpressions(textString);
}
((RawSQLChange) change).setSql(expandedExpression);
} else if (change instanceof CreateProcedureChange) {
((CreateProcedureChange) change)
.setProcedureBody(textString);
// } else if (change instanceof AlterViewChange) {
// ((AlterViewChange)
// change).setSelectQuery(textString);
} else if (change instanceof CreateViewChange) {
((CreateViewChange) change).setSelectQuery(textString);
} else if (change instanceof StopChange) {
((StopChange) change).setMessage(textString);
} else {
throw new RuntimeException("Unexpected text in "
+ changeFactory.getChangeMetaData(change).getName());
}
}
text = null;
if (inRollback) {
changeSet.addRollbackChange(change);
} else {
changeSet.addChange(change);
}
change = null;
} else if (changeSet != null && "validCheckSum".equals(qName)) {
changeSet.addValidCheckSum(text.toString());
text = null;
} else if ("modifySql".equals(qName)) {
inModifySql = false;
modifySqlDbmsList = null;
modifySqlContexts = null;
modifySqlAppliedOnRollback = false;
}
} catch (Exception e) {
log.severe("Error thrown as a SAXException: " + e.getMessage(), e);
throw new SAXException(databaseChangeLog.getPhysicalFilePath()
+ ": " + e.getMessage(), e);
}
}
protected void handlePreCondition(
@SuppressWarnings("unused") Precondition precondition) {
databaseChangeLog.setPreconditions(rootPrecondition);
}
protected void handleChangeSet(ChangeSet changeSet) {
databaseChangeLog.addChangeSet(changeSet);
}
@Override
public void characters(char ch[], int start, int length)
throws SAXException {
if (text != null) {
text.append(new String(ch, start, length));
}
}
/**
* Wrapper for Attributes that expands the value as needed
*/
private class ExpandingAttributes implements Attributes {
private Attributes attributes;
private ExpandingAttributes(Attributes attributes) {
this.attributes = attributes;
}
@Override
public int getLength() {
return attributes.getLength();
}
@Override
public String getURI(int index) {
return attributes.getURI(index);
}
@Override
public String getLocalName(int index) {
return attributes.getLocalName(index);
}
@Override
public String getQName(int index) {
return attributes.getQName(index);
}
@Override
public String getType(int index) {
return attributes.getType(index);
}
@Override
public String getValue(int index) {
return attributes.getValue(index);
}
@Override
public int getIndex(String uri, String localName) {
return attributes.getIndex(uri, localName);
}
@Override
public int getIndex(String qName) {
return attributes.getIndex(qName);
}
@Override
public String getType(String uri, String localName) {
return attributes.getType(uri, localName);
}
@Override
public String getType(String qName) {
return attributes.getType(qName);
}
@Override
public String getValue(String uri, String localName) {
return changeLogParameters.expandExpressions(attributes.getValue(
uri, localName));
}
@Override
public String getValue(String qName) {
return changeLogParameters.expandExpressions(attributes
.getValue(qName));
}
}
static File extractZipFile(URL resource) throws IOException {
String file = resource.getFile();
String path = file.split("!")[0];
if(path.matches("file:\\/[A-Za-z]:\\/.*")) {
path = path.replaceFirst("file:\\/", "");
}else {
path = path.replaceFirst("file:", "");
}
path = URLDecoder.decode(path);
File zipfile = new File(path);
File tempDir = File.createTempFile("liquibase-sax", ".dir");
tempDir.delete();
tempDir.mkdir();
JarFile jarFile = new JarFile(zipfile);
try {
Enumeration entries = jarFile.entries();
while (entries.hasMoreElements()) {
JarEntry entry = entries.nextElement();
File entryFile = new File(tempDir, entry.getName());
entryFile.mkdirs();
}
FileUtil.forceDeleteOnExit(tempDir);
} finally {
jarFile.close();
}
return tempDir;
}
}
