/*
* Copyright (c) 2014, 2015 Eike Stepper (Loehne, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.oomph.predicates.impl;
import org.eclipse.oomph.predicates.FilePredicate;
import org.eclipse.oomph.predicates.PredicatesPackage;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceVisitor;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Status;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
/**
*
* An implementation of the model object 'File Predicate'.
*
*
* The following features are implemented:
*
*
* - {@link org.eclipse.oomph.predicates.impl.FilePredicateImpl#getFilePattern File Pattern}
* - {@link org.eclipse.oomph.predicates.impl.FilePredicateImpl#getContentPattern Content Pattern}
*
*
* @generated
*/
public class FilePredicateImpl extends PredicateImpl implements FilePredicate
{
/**
* The default value of the '{@link #getFilePattern() File Pattern}' attribute.
*
*
* @see #getFilePattern()
* @generated
* @ordered
*/
protected static final String FILE_PATTERN_EDEFAULT = null;
/**
* The cached value of the '{@link #getFilePattern() File Pattern}' attribute.
*
*
* @see #getFilePattern()
* @generated
* @ordered
*/
protected String filePattern = FILE_PATTERN_EDEFAULT;
/**
* The default value of the '{@link #getContentPattern() Content Pattern}' attribute.
*
*
* @see #getContentPattern()
* @generated
* @ordered
*/
protected static final String CONTENT_PATTERN_EDEFAULT = null;
/**
* The cached value of the '{@link #getContentPattern() Content Pattern}' attribute.
*
*
* @see #getContentPattern()
* @generated
* @ordered
*/
protected String contentPattern = CONTENT_PATTERN_EDEFAULT;
/**
*
*
* @generated
*/
protected FilePredicateImpl()
{
super();
}
/**
*
*
* @generated
*/
@Override
protected EClass eStaticClass()
{
return PredicatesPackage.Literals.FILE_PREDICATE;
}
/**
*
*
* @generated
*/
public String getFilePattern()
{
return filePattern;
}
/**
*
*
* @generated
*/
public void setFilePattern(String newFilePattern)
{
String oldFilePattern = filePattern;
filePattern = newFilePattern;
if (eNotificationRequired())
{
eNotify(new ENotificationImpl(this, Notification.SET, PredicatesPackage.FILE_PREDICATE__FILE_PATTERN, oldFilePattern, filePattern));
}
}
/**
*
*
* @generated
*/
public String getContentPattern()
{
return contentPattern;
}
/**
*
*
* @generated
*/
public void setContentPattern(String newContentPattern)
{
String oldContentPattern = contentPattern;
contentPattern = newContentPattern;
if (eNotificationRequired())
{
eNotify(new ENotificationImpl(this, Notification.SET, PredicatesPackage.FILE_PREDICATE__CONTENT_PATTERN, oldContentPattern, contentPattern));
}
}
/**
*
*
* @generated NOT
*/
@Override
public boolean matches(IResource resource)
{
String filePattern = getFilePattern();
if (filePattern != null)
{
StringBuilder pattern = new StringBuilder();
for (int i = 0, length = filePattern.length(); i < length; ++i)
{
char character = filePattern.charAt(i);
if (!Character.isJavaIdentifierPart(character))
{
if (character == '*')
{
if (i + 1 < length && filePattern.charAt(i + 1) == '*')
{
++i;
pattern.append(".*");
}
else
{
pattern.append("[^/]*");
}
}
else if (character == '?')
{
pattern.append("[^/]");
}
else
{
pattern.append('\\');
pattern.append(character);
}
}
else
{
pattern.append(character);
}
}
try
{
final Pattern regex = Pattern.compile(pattern.toString());
final CoreException matched = new CoreException(Status.OK_STATUS);
final Pattern contentPattern = getContentPattern() == null ? null : Pattern.compile(getContentPattern());
try
{
resource.accept(new IResourceVisitor()
{
public boolean visit(IResource resource) throws CoreException
{
String path = resource.getProjectRelativePath().toString();
if (regex.matcher(path).matches())
{
if (contentPattern == null)
{
throw matched;
}
if (resource.getType() == IResource.FILE)
{
IFile file = (IFile)resource;
String charset = file.getCharset();
InputStream inputStream = null;
try
{
inputStream = file.getContents();
BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);
byte[] input = new byte[bufferedInputStream.available()];
bufferedInputStream.read(input);
String contents = charset == null ? new String(input) : new String(input, charset);
if (contentPattern.matcher(contents).find())
{
throw matched;
}
}
catch (IOException ex)
{
// Ignore.
}
finally
{
if (inputStream != null)
{
try
{
inputStream.close();
}
catch (IOException ex)
{
// Ignore.
}
}
}
}
}
return true;
}
});
}
catch (CoreException ex)
{
if (ex == matched)
{
return true;
}
}
}
catch (PatternSyntaxException exception)
{
// Ignore
}
}
return false;
}
/**
*
*
* @generated
*/
@Override
public Object eGet(int featureID, boolean resolve, boolean coreType)
{
switch (featureID)
{
case PredicatesPackage.FILE_PREDICATE__FILE_PATTERN:
return getFilePattern();
case PredicatesPackage.FILE_PREDICATE__CONTENT_PATTERN:
return getContentPattern();
}
return super.eGet(featureID, resolve, coreType);
}
/**
*
*
* @generated
*/
@Override
public void eSet(int featureID, Object newValue)
{
switch (featureID)
{
case PredicatesPackage.FILE_PREDICATE__FILE_PATTERN:
setFilePattern((String)newValue);
return;
case PredicatesPackage.FILE_PREDICATE__CONTENT_PATTERN:
setContentPattern((String)newValue);
return;
}
super.eSet(featureID, newValue);
}
/**
*
*
* @generated
*/
@Override
public void eUnset(int featureID)
{
switch (featureID)
{
case PredicatesPackage.FILE_PREDICATE__FILE_PATTERN:
setFilePattern(FILE_PATTERN_EDEFAULT);
return;
case PredicatesPackage.FILE_PREDICATE__CONTENT_PATTERN:
setContentPattern(CONTENT_PATTERN_EDEFAULT);
return;
}
super.eUnset(featureID);
}
/**
*
*
* @generated
*/
@Override
public boolean eIsSet(int featureID)
{
switch (featureID)
{
case PredicatesPackage.FILE_PREDICATE__FILE_PATTERN:
return FILE_PATTERN_EDEFAULT == null ? filePattern != null : !FILE_PATTERN_EDEFAULT.equals(filePattern);
case PredicatesPackage.FILE_PREDICATE__CONTENT_PATTERN:
return CONTENT_PATTERN_EDEFAULT == null ? contentPattern != null : !CONTENT_PATTERN_EDEFAULT.equals(contentPattern);
}
return super.eIsSet(featureID);
}
/**
*
*
* @generated
*/
@Override
public String toString()
{
if (eIsProxy())
{
return super.toString();
}
StringBuffer result = new StringBuffer(super.toString());
result.append(" (filePattern: ");
result.append(filePattern);
result.append(", contentPattern: ");
result.append(contentPattern);
result.append(')');
return result.toString();
}
} // FilePredicateImpl