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1
50
51 package org.openlaszlo.iv.flash.url;
52
53 import java.lang.reflect.*;
54 import java.io.*;
55 import java.util.*;
56 import java.net.*;
57 import java.sql.*;
58 import org.openlaszlo.iv.flash.util.*;
59 import org.openlaszlo.iv.flash.api.*;
60
61 import org.openlaszlo.iv.flash.url.filters.*;
62
63
70 public class FilterUrl extends IVUrl {
71
72 private static Hashtable filters = new Hashtable();
73
74 private UrlFilter filter;
75 private FlashFile flashFile;
76
77 public FilterUrl( String  surl, FlashFile flashFile ) throws IVException {
78 this.flashFile = flashFile;
79 parse( surl );
80 }
81
82 protected void parse( String s ) throws IVException {
83 int idx = s.indexOf('?');
84 if( idx < 12 ) {
85 throw new IVException(Resource.INVALURL, new Object [] {s});
86 }
87
88 String filterName = s.substring(12, idx);
89 try {
90 synchronized(getClass()) {
91 filter = (UrlFilter) filters.get(filterName);
92 if( filter == null ) {
93 Class clazz = Class.forName("org.openlaszlo.iv.flash.url.filters."+filterName);
94 Constructor constructor = clazz.getConstructor(null);
95 filter = (UrlFilter) constructor.newInstance(null);
96 filters.put(filterName, filter);
97 }
98 }
99 } catch( Exception e ) {
100 throw new IVException(Resource.INVALURL, new Object [] {s}, e);
101 }
102
103 parse(s, idx);
104 }
105
106 public String getName() {
107 String name = filter.getClass().getName();
108 return name.substring( name.lastIndexOf('.')+1 );
109 }
110
111 public boolean hasDataReady() {
112 return true;
113 }
114
115 public String [][] getData() throws IOException {
116 String datasource = getParameter("datasource");
117 String [][] data;
118 try {
119 UrlDataSource ds = new UrlDataSource(datasource,flashFile);
120 data = ds.getData();
121 } catch( IVException e ) {
122 throw new IOException(e.getLocalizedMessage());
123 }
124 return filter.filter(data, parms);
125 }
126
127 public InputStream getInputStream() throws IOException {
128 return arrayToStream(getData());
129 }
130
131 }
132
133 |
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