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1 package org.sapia.regis.util;
2
3 import java.io.FileNotFoundException  ;
4 import java.io.IOException ;
5 import java.io.InputStream ;
6 import java.util.ArrayList ;
7 import java.util.Enumeration ;
8 import java.util.List ;
9 import java.util.Properties ;
10
11 import org.sapia.util.text.SystemContext;
12
13 public class ResourceFinder {
14
15 private List _resources = new ArrayList ();
16 private String _list;
17
18 ResourceFinder(String list){
19 _list = list;
20 }
21
22 public static InputStream findResource(String resourceList) throws FileNotFoundException , IOException {
23 return ResourceFinderFactory.parse(resourceList).find(false);
24 }
25
26 public static InputStream getResource(String resourceList) throws IOException {
27 return ResourceFinderFactory.parse(resourceList).find(true);
28 }
29
30 public static void findProperties(String resourceList, Properties props) throws FileNotFoundException , IOException {
31 ResourceFinderFactory.parse(resourceList).doLoadProperties(false, props);
32 }
33
34 public static void loadProperties(String resourceList, Properties props) throws FileNotFoundException , IOException {
35 ResourceFinderFactory.parse(resourceList).doLoadProperties(true, props);
36 }
37
38 void addResource(String resource){
39 _resources.add(resource);
40 }
41
42 void addResources(List resources){
43 _resources.add(resources);
44 }
45
46 InputStream find(boolean ignoreNotFound) throws FileNotFoundException , IOException {
47 for(int i = 0; i < _resources.size(); i++){
48 Object res = _resources.get(i);
49 if(res instanceof String ){
50 if(ignoreNotFound){
51 try{
52 return Utils.load(ResourceFinder.class, (String )res);
53 }catch(FileNotFoundException e){
54 continue;
55 }
56 }
57 else{
58 return Utils.load(ResourceFinder.class, (String )res);
59 }
60 }
61 else{
62 try{
63 List resources = (List )res;
64 for(int j = 0; j < resources.size(); j++){
65 return Utils.load(ResourceFinder.class, (String )resources.get(j));
66 }
67 }catch(IOException e){
68 }
70 }
71 }
72 if(ignoreNotFound){
73 return null;
74 }
75 throw new FileNotFoundException ("No resource could be found in: " + _list);
76 }
77
78 void doLoadProperties(boolean ignoreNotFound, Properties props) throws FileNotFoundException , IOException {
79 for(int i = 0; i < _resources.size(); i++){
80 Object res = _resources.get(i);
81 if(res instanceof String ){
82 if(ignoreNotFound){
83 try{
84 doLoad(Utils.load(ResourceFinder.class, (String )res), props);
85 }catch(FileNotFoundException e){
86 continue;
87 }
88 }
89 else{
90 doLoad(Utils.load(ResourceFinder.class, (String )res), props);
91 }
92 }
93 else{
94 try{
95 List resources = (List )res;
96 for(int j = 0; j < resources.size(); j++){
97 doLoad(Utils.load(ResourceFinder.class, (String )resources.get(j)), props);
98 }
99 }catch(IOException e){
100 }
102 }
103 }
104 }
105
106 private void doLoad(InputStream is, Properties props) throws IOException {
107 Properties newProps = new Properties ();
108 try{
109 newProps.load(is);
110 }finally{
111 is.close();
112 }
113 newProps = Utils.replaceVars(new PropertiesContext(props, new SystemContext()), newProps);
114 Enumeration names = newProps.propertyNames();
115 while(names.hasMoreElements()){
116 String name = (String )names.nextElement();
117 props.setProperty(name, newProps.getProperty(name));
118 }
119 }
120
121 }
122 |
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