Obsługa PDF - lista

PC34-RestSerwer/pom.xml

@@ -42,5 +42,16 @@
 			<version>42.5.0</version>
 			<scope>runtime</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.apache.xmlgraphics</groupId>
+			<artifactId>fop</artifactId>
+			<version>2.7</version>
+			<exclusions>
+				<exclusion>
+					<groupId>xml-apis</groupId>
+					<artifactId>xml-apis</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
 	</dependencies>
 </project>

PC34-RestSerwer/src/main/java/sklep/rest/RProductsPDF.java

@@ -2,16 +2,12 @@ package sklep.rest;
 
 import javax.ws.rs.GET;
 import javax.ws.rs.Path;
-import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 
 import sklep.db.DBConnection;
 import sklep.db.DBException;
 import sklep.db.ProductDAO;
-import sklep.db.RecordNotFound;
-import sklep.model.Product;
 import sklep.model.ProductList;
-import sklep.photo.PhotoUtil;
 
 @Path("/products.pdf")
 @Produces("application/pdf")
@@ -24,21 +20,4 @@ public class RProductsPDF {
 			return new ProductList(productDAO.readAll());
 		}
 	}
-	
-	@GET
-	@Path("/{id}")
-	public Product readOne(@PathParam("id") int productId) throws DBException, RecordNotFound {
-		try(DBConnection db = DBConnection.open()) {
-			ProductDAO productDAO = db.productDAO();
-			return productDAO.findById(productId);
-		}
-	}
-	
-	@GET
-	@Path("/{id}/photo")
-	@Produces("image/jpeg")
-	public byte[] getPhoto(@PathParam("id") int productId) throws DBException, RecordNotFound {
-		return PhotoUtil.readBytes(productId);
-	}
-
 }

PC34-RestSerwer/src/main/java/sklep/rest/ext/ObslugaXSL.java

+package sklep.rest.ext;
+
+import java.io.BufferedOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URI;
+
+import javax.servlet.ServletContext;
+import javax.ws.rs.WebApplicationException;
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.util.JAXBSource;
+import javax.xml.transform.Result;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.sax.SAXResult;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.fop.apps.Fop;
+import org.apache.fop.apps.FopFactory;
+import org.apache.xmlgraphics.util.MimeConstants;
+
+public class ObslugaXSL {
+	private ServletContext servletContext;
+	
+	public ObslugaXSL(ServletContext servletContext) {
+		this.servletContext = servletContext;
+	}
+
+	// obiekt -(za pomocą JAXB)-> XML -(za pomocą transformera)-> XML(XSL-FO)
+	// --(za pomocą Apache FOP)-> PDF -> output
+	public void wypiszPDF(Object obj, OutputStream output) {
+		try(InputStream configStream = servletContext.getResourceAsStream("WEB-INF/fop-conf.xml")) {
+
+			JAXBContext ctx = JAXBContext.newInstance(obj.getClass());
+			JAXBSource src = new JAXBSource(ctx, obj);
+
+			FopFactory fopFactory = FopFactory.newInstance(new URI(""), configStream);
+
+			try(BufferedOutputStream pdfOut = new BufferedOutputStream(output)) {
+				Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, pdfOut);
+				TransformerFactory tf = TransformerFactory.newInstance();
+				StreamSource xsl = new StreamSource(servletContext.getResourceAsStream("WEB-INF/sklep-fo.xsl"));
+	
+				Transformer tr = tf.newTransformer(xsl);
+				Result res = new SAXResult(fop.getDefaultHandler());
+				tr.transform(src, res);
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+			throw new WebApplicationException("Problem FOP " + e.getMessage(), e, 500);
+		}
+	}
+
+}

PC34-RestSerwer/src/main/java/sklep/rest/ext/PDFWriter.java

@@ -5,7 +5,9 @@ import java.io.OutputStream;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
 
+import javax.servlet.ServletContext;
 import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.Context;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.MultivaluedMap;
 import javax.ws.rs.ext.MessageBodyWriter;
@@ -15,19 +17,22 @@ import sklep.model.ProductList;
 
 @Provider
 public class PDFWriter implements MessageBodyWriter<ProductList> {
+	private static final MediaType PDF_TYPE = new MediaType("application", "pdf");
+
+	@Context
+	private ServletContext servletContext;
 
 	@Override
 	public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
-		// TODO Auto-generated method stub
-		return true;
+		return (type == ProductList.class) && PDF_TYPE.isCompatible(mediaType);
 	}
 
 	@Override
 	public void writeTo(ProductList lista, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
 			MultivaluedMap<String, Object> httpHeaders, OutputStream output)
 			throws IOException, WebApplicationException {
-		// TODO Auto-generated method stub
-		
+		ObslugaXSL obslugaXSL = new ObslugaXSL(servletContext);
+		obslugaXSL.wypiszPDF(lista, output);
 	}
 
 }

PC34-RestSerwer/src/main/webapp/WEB-INF/fop-conf.xml

+<?xml version="1.0"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<!-- $Id: fop.xconf 447325 2006-09-18 08:55:33Z jeremias $ -->
+
+<!--
+
+This is an example configuration file for FOP.
+This file contains the same settings as the default values
+and will have no effect if used unchanged.
+
+Relative config url's will be resolved relative to
+the location of this file.
+
+-->
+
+<!-- NOTE: This is the version of the configuration -->
+<fop version="1.0">
+
+  <!-- Base URL for resolving relative URLs -->
+  <base>.</base>
+  
+  <!-- Source resolution in dpi (dots/pixels per inch) for determining the size of pixels in SVG and bitmap images, default: 72dpi -->
+  <source-resolution>72</source-resolution>
+  <!-- Target resolution in dpi (dots/pixels per inch) for specifying the target resolution for generated bitmaps, default: 72dpi -->
+  <target-resolution>72</target-resolution>
+  
+  <!-- Default page-height and page-width, in case
+       value is specified as auto -->
+  <default-page-settings height="11in" width="8.26in"/>
+  
+  <!-- Information for specific renderers -->
+  <!-- Uses renderer mime type for renderers -->
+  <renderers>
+    <renderer mime="application/pdf">
+      <filterList>
+        <!-- provides compression using zlib flate (default is on) -->
+        <value>flate</value>
+  
+        <!-- encodes binary data into printable ascii characters (default off)
+             This provides about a 4:5 expansion of data size -->
+        <!-- <value>ascii-85</value> -->
+  
+        <!-- encodes binary data with hex representation (default off)
+             This filter is not recommended as it doubles the data size -->
+        <!-- <value>ascii-hex</value> -->
+      </filterList>
+
+      <fonts>
+        <!-- embedded fonts -->
+        <!--
+        This information must exactly match the font specified
+        in the fo file. Otherwise it will use a default font.
+
+        For example,
+        <fo:inline font-family="Arial" font-weight="bold" font-style="normal">
+            Arial-normal-normal font
+        </fo:inline>
+        for the font triplet specified by:
+        <font-triplet name="Arial" style="normal" weight="bold"/>
+
+        If you do not want to embed the font in the pdf document
+        then do not include the "embed-url" attribute.
+        The font will be needed where the document is viewed
+        for it to be displayed properly.
+
+        possible styles: normal | italic | oblique | backslant
+        possible weights: normal | bold | 100 | 200 | 300 | 400
+                          | 500 | 600 | 700 | 800 | 900
+        (normal = 400, bold = 700)
+        -->
+
+        <!--
+        <font kerning="yes" embed-url="/usr/share/fonts/truetype/msttcorefonts/arial.ttf">
+          <font-triplet name="Arial" style="normal" weight="normal"/>
+          <font-triplet name="ArialMT" style="normal" weight="normal"/>
+        </font>
+        <font kerning="yes" embed-url="/usr/share/fonts/truetype/msttcorefonts/arial.ttf">
+          <font-triplet name="Arial" style="normal" weight="normal"/>
+          <font-triplet name="ArialMT" style="normal" weight="normal"/>
+        </font>
+        -->
+        
+        <!-- PC -->
+        <directory recursive="true">/usr/share/fonts/truetype/</directory>
+        <directory recursive="true">C:\Windows\Fonts</directory>
+        
+      </fonts>
+
+      <!-- This option lets you specify additional options on an XML handler -->
+      <!--xml-handler namespace="http://www.w3.org/2000/svg">
+        <stroke-text>false</stroke-text>
+      </xml-handler-->
+
+    </renderer>
+
+    <renderer mime="application/postscript">
+      <!-- This option forces the PS renderer to rotate landscape pages -->
+      <!--auto-rotate-landscape>true</auto-rotate-landscape-->
+      
+      <!-- This option lets you specify additional options on an XML handler -->
+      <!--xml-handler namespace="http://www.w3.org/2000/svg">
+        <stroke-text>false</stroke-text>
+      </xml-handler-->
+    </renderer>
+
+    <renderer mime="application/vnd.hp-PCL">
+    </renderer>
+
+    <!-- MIF does not have a renderer
+    <renderer mime="application/vnd.mif">
+    </renderer>
+    -->
+
+    <renderer mime="image/svg+xml">
+      <format type="paginated"/>
+      <link value="true"/>
+      <strokeText value="false"/>
+    </renderer>
+
+    <renderer mime="application/awt">
+    </renderer>
+
+    <renderer mime="image/png">
+      <!--transparent-page-background>true</transparent-page-background-->
+    </renderer>
+
+    <renderer mime="image/tiff">
+      <!--transparent-page-background>true</transparent-page-background-->
+      <!--compression>CCITT T.6</compression-->
+    </renderer>
+
+    <renderer mime="text/xml">
+    </renderer>
+
+    <!-- RTF does not have a renderer
+    <renderer mime="text/rtf">
+    </renderer>
+    -->
+
+    <renderer mime="text/plain">
+      <pageSize columns="80"/>
+    </renderer>
+
+  </renderers>
+
+</fop>
+

PC34-RestSerwer/src/main/webapp/WEB-INF/sklep-fo.xsl

+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet version="1.0"
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+	xmlns:fo="http://www.w3.org/1999/XSL/Format">
+
+	<xsl:output method="xml" encoding="utf-8" />
+
+	<xsl:template match="/">
+		<fo:root font-family="Arial">
+			<fo:layout-master-set>
+				<fo:simple-page-master master-name="A4"
+					page-width="210mm" page-height="297mm" margin-top="1cm"
+					margin-bottom="1cm" margin-left="1.5cm" margin-right="1.5cm">
+					<fo:region-body margin="2cm" />
+				</fo:simple-page-master>
+			</fo:layout-master-set>
+
+			<fo:page-sequence master-reference="A4">
+				<fo:flow flow-name="xsl-region-body">
+					<xsl:apply-templates />
+					<fo:block/>
+				</fo:flow>
+			</fo:page-sequence>
+		</fo:root>
+	</xsl:template>
+
+	<xsl:template match="product">
+		<fo:block-container space-before.minimum="0.5em"
+			page-break-inside="avoid">
+			<fo:block>
+				<xsl:text>Produkt nr </xsl:text>
+				<xsl:value-of select="@id" />
+				<xsl:text>.</xsl:text>
+			</fo:block>
+			<fo:block-container margin="1em"
+				border-style="solid" border-width="2.5pt" padding="3pt"
+				border-color="#2233AA">
+				<fo:block font-weight="bold" font-size="14pt"
+					margin-bottom="1em" color="#FF2244">
+					<xsl:apply-templates select="product-name" />
+				</fo:block>
+				<fo:block font-weight="bold" color="green">
+					<xsl:text>Cena: </xsl:text>
+					<xsl:value-of select="price" />
+				</fo:block>
+				<fo:block color="green">
+					<xsl:text>VAT: </xsl:text>
+					<fo:inline font-style="italic">
+					<xsl:value-of select="vat * 100" />
+					<xsl:text>%</xsl:text>
+					</fo:inline>
+				</fo:block>
+				<fo:block font-size="12pt" margin-bottom="1em">
+					<xsl:apply-templates select="description" />
+				</fo:block>
+			</fo:block-container>
+		</fo:block-container>
+	</xsl:template>
+
+</xsl:stylesheet>