From ea60aae139c666c610c1af5cfd0b616d3f4a535c Mon Sep 17 00:00:00 2001 From: tknall Date: Tue, 25 Nov 2008 12:48:15 +0000 Subject: Preparation for multilingual support for web application. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@312 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../at/gv/egiz/pdfas/api/commons/Constants.java | 32 +++--- .../at/gv/egiz/pdfas/exceptions/ErrorCode.java | 1 + .../pdfas/web/i18n/LanguageDecoratorMapper.java | 111 +++++++++++++++++++++ .../gv/egiz/pdfas/web/i18n/SetLanguageServlet.java | 59 +++++++++++ 4 files changed, 190 insertions(+), 13 deletions(-) create mode 100644 src/main/java/at/gv/egiz/pdfas/web/i18n/LanguageDecoratorMapper.java create mode 100644 src/main/java/at/gv/egiz/pdfas/web/i18n/SetLanguageServlet.java (limited to 'src/main/java/at/gv') diff --git a/src/main/java/at/gv/egiz/pdfas/api/commons/Constants.java b/src/main/java/at/gv/egiz/pdfas/api/commons/Constants.java index a7bc776..19f7613 100644 --- a/src/main/java/at/gv/egiz/pdfas/api/commons/Constants.java +++ b/src/main/java/at/gv/egiz/pdfas/api/commons/Constants.java @@ -21,13 +21,15 @@ public final class Constants /** * A binary signature. + * This value should not be modified due to external dependencies! */ - public static String SIGNATURE_TYPE_BINARY = "binary"; + public static final String SIGNATURE_TYPE_BINARY = "binary"; /** * A textual signature. + * This value should not be modified due to external dependencies! */ - public static String SIGNATURE_TYPE_TEXTUAL = "textual"; + public static final String SIGNATURE_TYPE_TEXTUAL = "textual"; /** * A "detached" textual signature. @@ -37,32 +39,36 @@ public final class Constants * the sign result XML of the connector is returned. *

*/ - public static String SIGNATURE_TYPE_DETACHEDTEXTUAL = "detachedtextual"; + public static final String SIGNATURE_TYPE_DETACHEDTEXTUAL = "detachedtextual"; /** * The signature device moa. + * This value should not be modified due to external dependencies! */ - public static String SIGNATURE_DEVICE_MOA = "moa"; + public static final String SIGNATURE_DEVICE_MOA = "moa"; /** * The signature device bku. + * This value should not be modified due to external dependencies! */ - public static String SIGNATURE_DEVICE_BKU = "bku"; + public static final String SIGNATURE_DEVICE_BKU = "bku"; /** * The signature device a1. + * This value should not be modified due to external dependencies! */ - public static String SIGNATURE_DEVICE_A1 = "a1"; + public static final String SIGNATURE_DEVICE_A1 = "a1"; /** * The signature device MOCCA (online bku). + * This value should not be modified due to external dependencies! */ public static final String SIGNATURE_DEVICE_MOC = "moc"; /** * Only binary signatures are verified. */ - public static String VERIFY_MODE_BINARY_ONLY = "binaryOnly"; + public static final String VERIFY_MODE_BINARY_ONLY = "binaryOnly"; /** * Binary and textual signatures are verified with time optimization. @@ -73,27 +79,27 @@ public final class Constants * signatures may not be found. *

*/ - public static String VERIFY_MODE_SEMI_CONSERVATIVE = "semiConservative"; + public static final String VERIFY_MODE_SEMI_CONSERVATIVE = "semiConservative"; /** * Binary and textual signatures are verified. */ - public static String VERIFY_MODE_FULL_CONSERVATIVE = "fullConservative"; + public static final String VERIFY_MODE_FULL_CONSERVATIVE = "fullConservative"; /** * All signatures are verified. */ - public static int VERIFY_ALL = -1; + public static final int VERIFY_ALL = -1; /** * The system property that may be used to declare the pdf-as configuration folder. */ - public final static String CONFIG_DIR_SYSTEM_PROPERTY = "pdf-as.work-dir"; + public static final String CONFIG_DIR_SYSTEM_PROPERTY = "pdf-as.work-dir"; /** * The zip file containing the default configuration. */ - public final static String DEFAULT_CONFIGURATION_ZIP_RESOURCE = "DefaultConfiguration.zip"; + public static final String DEFAULT_CONFIGURATION_ZIP_RESOURCE = "DefaultConfiguration.zip"; /** * The configuration folder for pdf-as within the user's home folder. @@ -103,7 +109,7 @@ public final class Constants /** * The name of the directory, where temporary files are stored. */ - public final static String TEMP_DIR_NAME = "pdfastmp"; + public static final String TEMP_DIR_NAME = "pdfastmp"; } diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCode.java b/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCode.java index 062ff6b..ab8914c 100644 --- a/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCode.java +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCode.java @@ -25,6 +25,7 @@ public final class ErrorCode public static final int CANNOT_WRITE_PDF = 205; public static final int DOCUMENT_NOT_SIGNED = 206; public static final int SIGNATURE_TYPES_EXCEPTION = 223; + public static final int FONT_NOT_FOUND = 230; public static final int SIGNATURE_COULDNT_BE_CREATED = 300; public static final int SIGNED_TEXT_EMPTY = 301; diff --git a/src/main/java/at/gv/egiz/pdfas/web/i18n/LanguageDecoratorMapper.java b/src/main/java/at/gv/egiz/pdfas/web/i18n/LanguageDecoratorMapper.java new file mode 100644 index 0000000..1db7e3b --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/web/i18n/LanguageDecoratorMapper.java @@ -0,0 +1,111 @@ +package at.gv.egiz.pdfas.web.i18n; + +import java.io.File; +import java.util.Locale; +import java.util.Properties; + +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpSession; + +import org.apache.log4j.Logger; + +import com.opensymphony.module.sitemesh.Config; +import com.opensymphony.module.sitemesh.Decorator; +import com.opensymphony.module.sitemesh.DecoratorMapper; +import com.opensymphony.module.sitemesh.Page; +import com.opensymphony.module.sitemesh.mapper.AbstractDecoratorMapper; +import com.opensymphony.module.sitemesh.mapper.DefaultDecorator; + +public class LanguageDecoratorMapper extends AbstractDecoratorMapper { + + public static final String LOCALE_SESSION_KEY = "at.gv.egiz.pdfas.web.i18n:currentLocale"; + + private Logger log = Logger.getLogger(LanguageDecoratorMapper.class); + + public void init(Config config, Properties properties, DecoratorMapper parent) throws InstantiationException { + super.init(config, properties, parent); + } + + public static Object getFirstNotNull(Object[] objects) { + if (objects == null) { + return null; + } + for (int i = 0; i < objects.length; i++) { + if (objects[i] != null) { + return objects[i]; + } + } + return null; + } + + public Decorator getDecorator(HttpServletRequest request, Page page) { + try { + Decorator result = null; + final Decorator d = super.getDecorator(request, page); + HttpSession session = request.getSession(); + log.trace("Looking for Locale in session."); + Locale locale = (Locale) session.getAttribute(LOCALE_SESSION_KEY); + if (locale == null) { + log.debug("Unable to find Locale in session. Creating new Locale based on Accept-Language header entry."); + String acceptLanguage = request.getHeader("Accept-Language"); + if (acceptLanguage != null) { + log.trace("Accept-Language header entry: " + acceptLanguage); + } else { + log.trace("No header entry found."); + } + if (acceptLanguage != null && acceptLanguage.length() >= 2) { + locale = new Locale(acceptLanguage.substring(0, 2)); + log.debug("New Locale created: " + locale); + } + } else { + log.debug("Locale found: " + locale); + } + String path; + if (locale != null) { + path = modifyPath(d.getPage(), locale.getLanguage()); + } else { + path = d.getPage(); + } + + File decFile = new File(config.getServletContext().getRealPath(path)); + + log.debug("Looking for decorator \"" + path + "\"."); + if (decFile.isFile()) { + result = new DefaultDecorator(d.getName(), path, null) { + public String getInitParameter(String paramName) { + return d.getInitParameter(paramName); + } + }; + } + + if (result != null) { + log.debug("Decorator found (\"" + result.getName() + "\", \"" + getFirstNotNull(new Object[] { result.getURIPath(), result.getPage(), ""}) + "\")."); + return result; + } else { + log.trace("No decorator found. Delegating to super class."); + result = super.getDecorator(request, page); + if (result != null) { + log.debug("Super class returned decorator (\"" + result.getName() + "\", \"" + getFirstNotNull(new Object[] { result.getURIPath(), result.getPage(), ""}) + "\")."); + } else { + log.trace("Super class did not return a decorator."); + } + return result; + } + } catch (NullPointerException e) { + return super.getDecorator(request, page); + } + } + + private static String modifyPath(String path, String ext) { + if (ext == null || ext.length() == 0) { + return path; + } + int dot = path.lastIndexOf('.'); + if (dot > -1) { + return path.substring(0, dot) + '-' + ext + path.substring(dot); + } else { + return path + '-' + ext; + } + } + +} diff --git a/src/main/java/at/gv/egiz/pdfas/web/i18n/SetLanguageServlet.java b/src/main/java/at/gv/egiz/pdfas/web/i18n/SetLanguageServlet.java new file mode 100644 index 0000000..582f765 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/web/i18n/SetLanguageServlet.java @@ -0,0 +1,59 @@ +package at.gv.egiz.pdfas.web.i18n; + +import java.io.IOException; +import java.util.Locale; + +import javax.servlet.RequestDispatcher; +import javax.servlet.ServletException; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import javax.servlet.http.HttpSession; + +import org.apache.commons.lang.ArrayUtils; +import org.apache.commons.lang.StringUtils; +import org.apache.log4j.Logger; + +public class SetLanguageServlet extends HttpServlet { + + private static final long serialVersionUID = 1L; + + public static final String LANGUAGE_PARAMETER = "code"; + private Logger log = Logger.getLogger(LanguageDecoratorMapper.class); + + protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + this.doPost(request, response); + } + + protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + + HttpSession session = request.getSession(); + + // check manual language override (should be two-letter ISO-639 code) + Locale currentManualSetLanguage = (Locale) session.getAttribute(LanguageDecoratorMapper.LOCALE_SESSION_KEY); + String language = request.getParameter(LANGUAGE_PARAMETER); + if (!StringUtils.isEmpty(language)) { + String code = language.trim().toLowerCase(); + if (!ArrayUtils.contains(Locale.getISOLanguages(), code)) { + log.error("Manually set language code \"" + code + "\" is not a valid ISO 639 language. Do not switch language."); + } else { + currentManualSetLanguage = new Locale(code); + log.info("Switching language to " + currentManualSetLanguage.getDisplayLanguage() + "."); + session.setAttribute(LanguageDecoratorMapper.LOCALE_SESSION_KEY, currentManualSetLanguage); + } + } + +// if (currentManualSetLanguage != null) { +// log.info("Forcing language " + currentManualSetLanguage.getDisplayLanguage() + "."); +// super.getServletContext().setAttribute(LanguageDecoratorMapper.LOCALE_SESSION_KEY, currentManualSetLanguage); +// } + +// response.sendRedirect(response.encodeRedirectURL(request.getContextPath() + "/")); + RequestDispatcher rd = request.getRequestDispatcher("/"); + rd.forward(request, response); + + } + + + +} -- cgit v1.2.3