/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, Inc.
*
* 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.app.generate.generators;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Set;
import java.util.TreeSet;
/**
* Abstract class that forms the foundation of most code generators. This class
* allows for includes and code indentation.
*/
public abstract class AbstractGenerator implements ProgramGenerator {
/**
* Default number of indent spaces.
*/
public static final int INDENT_SPACES = 4;
/**
* The contents of this file.
*/
private final StringBuilder contents = new StringBuilder();
/**
* The current indent level.
*/
private int currentIndent = 0;
/**
* The includes.
*/
private final Set<String> includes = new TreeSet<String>();
/**
* Add a line break;
*/
public void addBreak() {
this.contents.append("\n");
}
/**
* Add an include.
*
* @param str
* The include to add.
*/
public void addInclude(final String str) {
this.includes.add(str);
}
/**
* Add a line of code, indent proper.
*
* @param line
* The line of code to add.
*/
public void addLine(final String line) {
for (int i = 0; i < this.currentIndent; i++) {
this.contents.append(' ');
}
this.contents.append(line);
this.contents.append("\n");
}
/**
* Add to the beginning of the file. This is good for includes.
*
* @param str the string to insert
*/
public void addToBeginning(final String str) {
this.contents.insert(0, str);
}
/**
* Get the contents.
*
* @return The contents.
*/
@Override
public String getContents() {
return this.contents.toString();
}
/**
* @return The includes.
*/
public Set<String> getIncludes() {
return this.includes;
}
/**
* Indent a line. The line after dis one will be indented.
*
* @param line
* The line to indent.
*/
public void indentLine(final String line) {
addLine(line);
this.currentIndent += AbstractGenerator.INDENT_SPACES;
}
/**
* Unindent and then add this line.
*
* @param line
* The line to add.
*/
public void unIndentLine(final String line) {
this.currentIndent -= AbstractGenerator.INDENT_SPACES;
addLine(line);
}
/**
* Write the contents to the specified file.
*/
@Override
public void writeContents(final File targetFile) {
try {
final FileWriter outFile = new FileWriter(targetFile);
final PrintWriter out = new PrintWriter(outFile);
out.print(this.contents.toString());
out.close();
} catch (final IOException e) {
e.printStackTrace();
}
}
}