/**
* Copyright 2006-2016 the original author or authors.
*
* 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.
*/
package org.mybatis.generator.api.dom;
import java.util.Set;
import java.util.TreeSet;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
/**
* The Class OutputUtilities.
*
* @author Jeff Butler
*/
public class OutputUtilities {
/** The Constant lineSeparator. */
private static final String lineSeparator;
static {
String ls = System.getProperty("line.separator"); //$NON-NLS-1$
if (ls == null) {
ls = "\n"; //$NON-NLS-1$
}
lineSeparator = ls;
}
/**
* Utility class - no instances allowed.
*/
private OutputUtilities() {
super();
}
/**
* Utility method that indents the buffer by the default amount for Java
* (four spaces per indent level).
*
* @param sb
* a StringBuilder to append to
* @param indentLevel
* the required indent level
*/
public static void javaIndent(StringBuilder sb, int indentLevel) {
for (int i = 0; i < indentLevel; i++) {
sb.append(" "); //$NON-NLS-1$
}
}
/**
* Utility method that indents the buffer by the default amount for XML (two
* spaces per indent level).
*
* @param sb
* a StringBuilder to append to
* @param indentLevel
* the required indent level
*/
public static void xmlIndent(StringBuilder sb, int indentLevel) {
for (int i = 0; i < indentLevel; i++) {
sb.append(" "); //$NON-NLS-1$
}
}
/**
* Utility method. Adds a newline character to a StringBuilder.
*
* @param sb
* the StringBuilder to be appended to
*/
public static void newLine(StringBuilder sb) {
sb.append(lineSeparator);
}
/**
* returns a unique set of "import xxx;" Strings for the set of types.
*
* @param importedTypes
* the imported types
* @return the sets the
*/
public static Set<String> calculateImports(
Set<FullyQualifiedJavaType> importedTypes) {
StringBuilder sb = new StringBuilder();
Set<String> importStrings = new TreeSet<String>();
for (FullyQualifiedJavaType fqjt : importedTypes) {
for (String importString : fqjt.getImportList()) {
sb.setLength(0);
sb.append("import "); //$NON-NLS-1$
sb.append(importString);
sb.append(';');
importStrings.add(sb.toString());
}
}
return importStrings;
}
}