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1 package org.nextime.ion.common;
2
3 import java.awt.Color  ;
4 import java.awt.Graphics ;
5 import java.awt.Image ;
6 import java.awt.image.BufferedImage ;
7 import java.io.File ;
8 import java.io.FileInputStream ;
9 import java.io.IOException ;
10
11 import javax.activation.FileTypeMap ;
12 import javax.imageio.ImageIO ;
13 import javax.servlet.ServletException ;
14 import javax.servlet.http.HttpServlet ;
15 import javax.servlet.http.HttpServletRequest ;
16 import javax.servlet.http.HttpServletResponse ;
17
18 import org.nextime.ion.frontoffice.bean.ResourceXmlBean;
19 import org.nextime.ion.frontoffice.bean.Resources;
20
21 public class ResourceServlet extends HttpServlet {
22
23 public static String relativePath = null;
24 public static String configPath = null;
25
26
29 protected void doGet(
30 HttpServletRequest request,
31 HttpServletResponse response)
32 throws ServletException , IOException {
33
34 String qs = request.getPathInfo().substring(1);
35
36 String resourcesId = qs.substring(0, qs.indexOf("/"));
37 String resourceId = qs.substring(qs.indexOf("/") + 1);
38
39 String path = null;
41 try {
42 ResourceXmlBean bean =
43 Resources.getResourceXmlBean(this, resourcesId);
44 path = bean.getDirectory();
45 } catch (Exception e) {
46 throw new ServletException (e);
47 }
48 String realPath = getServletContext().getRealPath("/");
49 File resources = new File (realPath, ResourceServlet.relativePath);
50 File tresources = new File (resources, path);
51 File tfile = new File (tresources, resourceId);
52
53 if (request.getParameter("width") != null
54 || request.getParameter("height") != null) {
55
56 int w = Integer.parseInt(request.getParameter("width") + "");
57 int h = Integer.parseInt(request.getParameter("height") + "");
58
59
60 File cache = new File (resources, "cache");
61 File possibleCached =
62 new File (cache, w + "_" + h + "_" + tfile.getName() + ".jpg");
63
64 String mimeType =
65 FileTypeMap.getDefaultFileTypeMap().getContentType(possibleCached);
66 response.setContentType(mimeType);
67
68 if (possibleCached.exists()) {
69 byte[] buffer = new byte[(int) possibleCached.length()];
71 FileInputStream fis = new FileInputStream (possibleCached);
72 fis.read(buffer);
73 fis.close();
74 response.getOutputStream().write(buffer);
75 response.getOutputStream().flush();
76 response.getOutputStream().close();
77 } else {
78
79 BufferedImage image = ImageIO.read(tfile);
80
81
86
87 int width = image.getWidth();
88
89
106
107 Image newImage = null;
108 Image newImage2 = null;
109
110 if( width>w ) {
111 newImage =
112 image.getScaledInstance(w, -1, Image.SCALE_SMOOTH);
113 } else {
114 newImage = (Image )image;
115 }
116
117 int height = newImage.getHeight(null);
118
119 if( height>h ) {
120 newImage2 =
121 newImage.getScaledInstance(-1, h, Image.SCALE_SMOOTH);
122 } else {
123 newImage2 = newImage;
124 }
125
126 BufferedImage myImage =
127 new BufferedImage (newImage2.getWidth(null), newImage2.getHeight(null), BufferedImage.TYPE_INT_RGB);
128 Graphics g = myImage.getGraphics();
129 g.drawImage(newImage2,0,0,null);
130
131
132 ImageIO.write(myImage, "jpg", possibleCached);
133 ImageIO.write(myImage, "jpg", response.getOutputStream());
134 response.getOutputStream().flush();
135 response.getOutputStream().close();
136 }
137
138 } else {
139
140 String mimeType =
142 FileTypeMap.getDefaultFileTypeMap().getContentType(tfile);
143 response.setContentType(mimeType);
144
145 byte[] buffer = new byte[(int) tfile.length()];
147 FileInputStream fis = new FileInputStream (tfile);
148 fis.read(buffer);
149 fis.close();
150 response.getOutputStream().write(buffer);
151 response.getOutputStream().flush();
152 response.getOutputStream().close();
153
154 }
155 }
156
157
160 public void init() throws ServletException {
161 relativePath = getInitParameter("relativePath");
162 configPath = getInitParameter("configPath");
163 }
164
165 }
166 |
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