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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt package org.litesoft.codegen; import java.io.*; import org.litesoft.util.*; @SuppressWarnings({"UnusedDeclaration"}) public class AbstractSourceCodeFileGenerator { protected static String mergeFileLines( String... pNewLines ) { int len = 0; for ( String pNewLine : pNewLines ) { len += pNewLine.length() + 1; } StringBuilder sb = new StringBuilder( len ); for ( String pNewLine : pNewLines ) { sb.append( pNewLine ); sb.append( '\n' ); } return sb.toString(); } @SuppressWarnings({"UnusedDeclaration"}) protected static GenerationReport.Action writeChangedFileLines( boolean pWriteIt, File pFile, String... pNewLines ) throws IOException { return writeChangedFile( pWriteIt, pFile, pWriteIt ? mergeFileLines( pNewLines ) : "" ); } protected static GenerationReport.Action writeChangedFile( boolean pWriteIt, File pFile, String pNewContents ) throws IOException { return writeFile( pWriteIt && (!pFile.exists() || !getFileAsString( pFile ).equals( pNewContents )), pFile, pNewContents ); } protected static GenerationReport.Action writeFile( boolean pWriteIt, File pFile, String pNewContents ) throws IOException { if ( !pWriteIt ) { return GenerationReport.Action.NoChange; } GenerationReport.Action rv; if ( pFile.exists() ) { rv = GenerationReport.Action.Updated; System.out.println( "Updating: " + pFile ); } else { rv = GenerationReport.Action.Created; System.out.println( "Creating: " + pFile ); File parentPath = pFile.getParentFile(); if ( (parentPath != null) && !parentPath.exists() ) { //noinspection ResultOfMethodCallIgnored parentPath.mkdirs(); } } FileWriter writer = new FileWriter( pFile ); writer.write( pNewContents ); writer.close(); return rv; } protected static String getFileAsString( File pFile ) throws IOException { int bytes = (int) pFile.length(); StringBuilder sb = new StringBuilder( bytes ); Reader reader = new BufferedReader( new FileReader( pFile ) ); for ( int i = 0; i < bytes; i++ ) { sb.append( (char) reader.read() ); } reader.close(); return sb.toString(); } /** * This method returns a string containing zero or more tabs. * <p/> * * @param numTabs Number of tabs to generate * * @return Description of the Returned Value */ @SuppressWarnings({"UnusedDeclaration"}) protected static String tabLevel( int numTabs ) { return (numTabs < 1) ? "" : Utils.spaces( numTabs * 4 ); } @SuppressWarnings({"UnusedDeclaration"}) protected static String deCamelToSpaced( String pName ) { StringBuilder sb = new StringBuilder( pName.length() + 5 ); for ( int i = 0; i < pName.length(); i++ ) { char c = pName.charAt( i ); if ( Character.isUpperCase( c ) ) { sb.append( ' ' ); } sb.append( c ); } return sb.toString().trim(); } @SuppressWarnings({"UnusedDeclaration"}) protected static String deCamelToUnderscoredConstant( String pName ) { StringBuilder sb = new StringBuilder( pName.length() + 5 ); sb.append( pName.charAt( 0 ) ); for ( int i = 1; i < pName.length(); i++ ) { char c = pName.charAt( i ); if ( Character.isUpperCase( c ) ) { sb.append( '_' ); } sb.append( Character.toUpperCase( c ) ); } return sb.toString(); } } |