/*******************************************************************************
* Copyright (c) 2015 Red Hat.
* 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:
* Red Hat - Initial Contribution
*******************************************************************************/
package org.eclipse.linuxtools.internal.docker.ui.wizards;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.wizard.Wizard;
public class ImageBuild extends Wizard {
private ImageBuildPage mainPage;
private String imageName;
private IPath directory;
private int lines;
public ImageBuild() {
super();
}
public String getImageName() {
return imageName;
}
public IPath getDirectory() {
return directory;
}
public int getNumberOfLines() {
return lines;
}
@Override
public void addPages() {
mainPage = new ImageBuildPage();
addPage(mainPage);
}
@Override
public boolean canFinish() {
return mainPage.isPageComplete();
}
private int numberOfLines() throws IOException {
String fileName = directory.append("Dockerfile").toString(); //$NON-NLS-1$
InputStream is = null;
int count = 0;
boolean empty = false;
try {
is = new BufferedInputStream(new FileInputStream(fileName));
byte[] c = new byte[1024];
int readChars = 0;
while ((readChars = is.read(c)) != -1) {
empty = false;
for (int i = 0; i < readChars; ++i) {
if (c[i] == '\n') {
++count;
}
}
}
} finally {
if (is != null)
is.close();
}
return (count == 0 && !empty) ? 1 : count;
}
@Override
public boolean performFinish() {
imageName = mainPage.getImageName();
directory = new Path(mainPage.getDirectory());
try {
lines = numberOfLines();
} catch (IOException e) {
// do nothing
}
return true;
}
}