package com.matrix.component.ueditor.hunter;
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import java.io.File;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.Map;
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import com.matrix.component.ueditor.PathFormat;
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import com.matrix.component.ueditor.define.AppInfo;
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import com.matrix.component.ueditor.define.BaseState;
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import com.matrix.component.ueditor.define.MultiState;
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import com.matrix.component.ueditor.define.State;
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import org.apache.commons.io.FileUtils;
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public class FileManager {
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private String dir = null;
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private String rootPath = null;
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private String[] allowFiles = null;
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private int count = 0;
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public FileManager ( Map<String, Object> conf ) {
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this.rootPath = (String)conf.get( "rootPath" );
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this.dir = this.rootPath + (String)conf.get( "dir" );
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this.allowFiles = this.getAllowFiles( conf.get("allowFiles") );
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this.count = (Integer)conf.get( "count" );
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}
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public State listFile ( int index ) {
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File dir = new File( this.dir );
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State state = null;
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if ( !dir.exists() ) {
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return new BaseState( false, AppInfo.NOT_EXIST );
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}
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if ( !dir.isDirectory() ) {
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return new BaseState( false, AppInfo.NOT_DIRECTORY );
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}
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Collection<File> list = FileUtils.listFiles( dir, this.allowFiles, true );
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if ( index < 0 || index > list.size() ) {
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state = new MultiState( true );
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} else {
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Object[] fileList = Arrays.copyOfRange( list.toArray(), index, index + this.count );
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state = this.getState( fileList );
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}
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state.putInfo( "start", index );
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state.putInfo( "total", list.size() );
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return state;
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}
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private State getState ( Object[] files ) {
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MultiState state = new MultiState( true );
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BaseState fileState = null;
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File file = null;
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for ( Object obj : files ) {
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if ( obj == null ) {
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break;
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}
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file = (File)obj;
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fileState = new BaseState( true );
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fileState.putInfo( "url", PathFormat.format( this.getPath( file ) ) );
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state.addState( fileState );
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}
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return state;
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}
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private String getPath ( File file ) {
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String path = file.getAbsolutePath();
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return path.replace( this.rootPath, "/" );
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}
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private String[] getAllowFiles ( Object fileExt ) {
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String[] exts = null;
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String ext = null;
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if ( fileExt == null ) {
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return new String[ 0 ];
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}
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exts = (String[])fileExt;
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for ( int i = 0, len = exts.length; i < len; i++ ) {
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ext = exts[ i ];
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exts[ i ] = ext.replace( ".", "" );
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}
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return exts;
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}
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}
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