[seam-commits] Seam SVN: r8828 - in trunk/src/pdf: org/jboss/seam/pdf/ui and 1 other directory.

Author: nickarls Date: 2008-08-27 05:35:03 -0400 (Wed, 27 Aug 2008) New Revision: 8828 Added: trunk/src/pdf/org/jboss/seam/pdf/ui/FormComponent.java trunk/src/pdf/org/jboss/seam/pdf/ui/UIField.java trunk/src/pdf/org/jboss/seam/pdf/ui/UIForm.java Modified: trunk/src/pdf/META-INF/faces-config.xml trunk/src/pdf/META-INF/seam-pdf.taglib.xml Log: Support for filling of PDF form fields. Preliminary pre-alpha. Modified: trunk/src/pdf/META-INF/faces-config.xml =================================================================== --- trunk/src/pdf/META-INF/faces-config.xml 2008-08-27 06:18:18 UTC (rev 8827) +++ trunk/src/pdf/META-INF/faces-config.xml 2008-08-27 09:35:03 UTC (rev 8828) @@ -149,6 +149,17 @@ <component-class>org.jboss.seam.pdf.ui.UISwingComponent</component-class> </component> + <component> + <component-type>org.jboss.seam.pdf.ui.UIField</component-type> + <component-class>org.jboss.seam.pdf.ui.UIField</component-class> + </component> + + <component> + <component-type>org.jboss.seam.pdf.ui.UIForm</component-type> + <component-class>org.jboss.seam.pdf.ui.UIForm</component-class> + </component> + + <!-- <render-kit> <render-kit-id>PDF</render-kit-id> Modified: trunk/src/pdf/META-INF/seam-pdf.taglib.xml =================================================================== --- trunk/src/pdf/META-INF/seam-pdf.taglib.xml 2008-08-27 06:18:18 UTC (rev 8827) +++ trunk/src/pdf/META-INF/seam-pdf.taglib.xml 2008-08-27 09:35:03 UTC (rev 8828) @@ -208,4 +208,19 @@ <component-type>org.jboss.seam.pdf.ui.UISwingComponent</component-type> </component> </tag> + + <tag> + <tag-name>form</tag-name> + <component> + <component-type>org.jboss.seam.pdf.ui.UIForm</component-type> + </component> + </tag> + + <tag> + <tag-name>field</tag-name> + <component> + <component-type>org.jboss.seam.pdf.ui.UIField</component-type> + </component> + </tag> + </facelet-taglib> Added: trunk/src/pdf/org/jboss/seam/pdf/ui/FormComponent.java =================================================================== --- trunk/src/pdf/org/jboss/seam/pdf/ui/FormComponent.java (rev 0) +++ trunk/src/pdf/org/jboss/seam/pdf/ui/FormComponent.java 2008-08-27 09:35:03 UTC (rev 8828) @@ -0,0 +1,19 @@ +package org.jboss.seam.pdf.ui; + +import javax.faces.component.UIComponentBase; +import javax.faces.context.FacesContext; + +public abstract class FormComponent extends UIComponentBase +{ + protected static final String FIELDS_KEY = "acrofields"; + + protected Object valueOf(String name, Object defaultValue) + { + Object value = defaultValue; + if (getValueExpression(name) != null) + { + value = getValueExpression(name).getValue(FacesContext.getCurrentInstance().getELContext()); + } + return value; + } +} Added: trunk/src/pdf/org/jboss/seam/pdf/ui/UIField.java =================================================================== --- trunk/src/pdf/org/jboss/seam/pdf/ui/UIField.java (rev 0) +++ trunk/src/pdf/org/jboss/seam/pdf/ui/UIField.java 2008-08-27 09:35:03 UTC (rev 8828) @@ -0,0 +1,61 @@ +package org.jboss.seam.pdf.ui; + +import java.io.IOException; + +import javax.faces.context.FacesContext; + +import org.jboss.seam.contexts.Contexts; +import org.jboss.seam.core.Interpolator; + +import com.lowagie.text.DocumentException; +import com.lowagie.text.pdf.AcroFields; + +public class UIField extends FormComponent +{ + public static final String COMPONENT_FAMILY = "org.jboss.seam.pdf.UIField"; + + private String name; + private String value; + + @Override + public void encodeBegin(FacesContext facesContext) throws IOException + { + AcroFields fields = (AcroFields) Contexts.getEventContext().get(FIELDS_KEY); + try + { + fields.setField(getName(), getValue()); + } + catch (DocumentException e) + { + String message = Interpolator.instance().interpolate("Could not set field #0 to #1", getName(), getValue()); + throw new IOException(message, e); + } + } + + @Override + public String getFamily() + { + return COMPONENT_FAMILY; + } + + public String getName() + { + return (String) valueOf("name", name); + } + + public void setName(String name) + { + this.name = name; + } + + public String getValue() + { + return (String) valueOf("value", value); + } + + public void setValue(String value) + { + this.value = value; + } + +} Added: trunk/src/pdf/org/jboss/seam/pdf/ui/UIForm.java =================================================================== --- trunk/src/pdf/org/jboss/seam/pdf/ui/UIForm.java (rev 0) +++ trunk/src/pdf/org/jboss/seam/pdf/ui/UIForm.java 2008-08-27 09:35:03 UTC (rev 8828) @@ -0,0 +1,114 @@ +package org.jboss.seam.pdf.ui; + +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.net.URL; + +import javax.faces.context.FacesContext; + +import org.jboss.seam.contexts.Contexts; +import org.jboss.seam.core.Manager; +import org.jboss.seam.document.DocumentData; +import org.jboss.seam.document.DocumentStore; +import org.jboss.seam.document.DocumentData.DocumentType; +import org.jboss.seam.log.Log; +import org.jboss.seam.log.Logging; +import org.jboss.seam.navigation.Pages; + +import com.lowagie.text.DocumentException; +import com.lowagie.text.pdf.AcroFields; +import com.lowagie.text.pdf.PdfReader; +import com.lowagie.text.pdf.PdfStamper; + +public class UIForm extends FormComponent +{ + public static final String COMPONENT_FAMILY = "org.jboss.seam.pdf.UIForm"; + private static final String CONTENT_TYPE = "application/pdf"; + + private Log log = Logging.getLog(getClass()); + + private String URL; + + PdfReader reader; + PdfStamper stamper; + AcroFields fields; + ByteArrayOutputStream buffer; + + public String getURL() + { + return (String) valueOf("URL", URL); + } + + public void setURL(String url) + { + URL = url; + } + + @Override + public void encodeBegin(FacesContext facesContext) throws IOException + { + reader = new PdfReader(new URL(getURL())); + buffer = new ByteArrayOutputStream(); + try + { + stamper = new PdfStamper(reader, buffer); + } + catch (DocumentException e) + { + throw new IOException("Could not create PDF stamper", e); + } + fields = stamper.getAcroFields(); + Contexts.getEventContext().set(FIELDS_KEY, fields); + } + + @Override + public void encodeEnd(FacesContext facesContext) throws IOException + { + stamper.setFormFlattening(true); + try + { + stamper.close(); + } + catch (DocumentException e) + { + throw new IOException("Could not flush PDF", e); + } + + String viewId = Pages.getViewId(facesContext); + String baseName = baseNameForViewId(viewId); + DocumentStore store = DocumentStore.instance(); + DocumentType documentType = new DocumentData.DocumentType("pdf", "application/pdf"); + DocumentData documentData = new DocumentData(baseName, documentType, buffer.toByteArray()); + String id = store.newId(); + String url = store.preferredUrlForContent(baseName, documentType.getExtension(), id); + url = Manager.instance().encodeConversationId(url, viewId); + store.saveData(id, documentData); + log.info("Redirecting to #0", url); + facesContext.getExternalContext().redirect(url); + } + + + public static String baseNameForViewId(String viewId) + { + int pos = viewId.lastIndexOf("/"); + if (pos != -1) + { + viewId = viewId.substring(pos + 1); + } + + pos = viewId.lastIndexOf("."); + if (pos != -1) + { + viewId = viewId.substring(0, pos); + } + + return viewId; + } + + @Override + public String getFamily() + { + return COMPONENT_FAMILY; + } + +}