cmsjspactionelement.java

内容管理

        try {
            if (file == null) file = CmsJspTagProperty.USE_URI;   
            switch (CmsJspTagProperty.m_actionValue.indexOf(file)) {      
                case 0: // USE_URI
                case 1: // USE_PARENT
                    value = getCmsObject().readProperties(getRequestContext().getUri(), false);
                    break;
                case 2: // USE_SEARCH
                case 3: // USE_SEARCH_URI
                case 4: // USE_SEARCH_PARENT 
                    value = getCmsObject().readProperties(getRequestContext().getUri(), true);                        
                    break;                
                case 5: // USE_ELEMENT_URI
                case 6: // USE_THIS
                    // Read properties of this file            
                    value = getCmsObject().readProperties(m_controller.getCurrentRequest().getElementUri(), false);
                    break;
                case 7: // USE_SEARCH_ELEMENT_URI
                case 8: // USE_SEARCH_THIS
                    // Try to find property on this file and all parent folders
                    value = getCmsObject().readProperties(m_controller.getCurrentRequest().getElementUri(), true);
                    break;
                default:
                    // Read properties of the file named in the attribute            
                    value = getCmsObject().readProperties(toAbsolute(file), false);
            }            
        } catch (Throwable t) {
            handleException(t);
        }
        return value;          
    }
    
    /**
     * Returns an OpenCms or JVM system info property value, same as using
     * the <code>&lt;cms:info property="..." /&gt;</code> tag.<p>
     * 
     * See the description of the class {@link CmsJspTagInfo} for a detailed list 
     * of available options for the property value.<p>
     *  
     * @param property the property to look up
     * @return String the value of the system property
     * @see com.opencms.flex.jsp.CmsJspTagInfo
     */
    public String info(String property) {
        try {        
            return CmsJspTagInfo.infoTagAction(property, m_request);   
        } catch (Throwable t) {
            handleException(t);
        }  
        return "+++ error reading info property '" + property + "' +++";
    }
    
    /**
     * Returns an OpenCms workplace label.<p>
     * 
     * You should consider using a standard 
     * {@link java.util.ResourceBundle java.util.ResourceBundle} instead of the 
     * OpenCms workplace language files.
     * 
     * @param label the label to look up
     * @return label the value of the label
     * 
     * @see com.opencms.flex.jsp.CmsJspTagLabel
     */
    public String label(String label) {
        if (m_notInitialized) return C_NOT_INITIALIZED;
        try {
            return CmsJspTagLabel.wpLabelTagAction(label, m_request);
        } catch (Throwable t) {
            handleException(t);
        }  
        return "+++ error reading workplace label '" + label + "' +++";
    }    
    
    /**
     * Checks if a template part should be used or not, same as using 
     * the <code>&lt;cms:template element="..." /&gt;</code> tag.<p>
     * 
     * @param part the template element to check 
     * @return <code>true</code> if the element is active, <code>false</code> otherwise
     * 
     * @see com.opencms.flex.jsp.CmsJspTagUser
     */
    public boolean template(String element) {
        if (m_notInitialized) return true;        
        try {
            return CmsJspTagTemplate.templateTagAction(element, m_request);
        } catch (Throwable t) {
            handleException(t);
        }
        return true;
    }
    
    /** 
     * Returns the current request context from the internal CmsObject.
     * 
     * @return the current request context from the internal CmsObject
     */
    public CmsRequestContext getRequestContext() {
        if (m_notInitialized) return null;
        try {
            return m_controller.getCmsObject().getRequestContext();
        } catch (Throwable t) {
            handleException(t);
        }
        return null;
    }
    
    /**
     * Returns an initialized {@link CmsJspNavBuilder} instance.<p>
     *  
     * @return CmsJspNavBuilder an initialized <code>CmsJspNavBuilder</code>
     * 
     * @see com.opencms.flex.jsp.CmsJspNavBuilder
     */
    public CmsJspNavBuilder getNavigation() {
        if (m_notInitialized) return null;
        try {
            if (m_navigation == null) {
                m_navigation = new CmsJspNavBuilder(m_controller.getCmsObject());
            }
            return m_navigation;
        } catch (Throwable t) {
            handleException(t);
        }
        return null;            
    }
    
    /**
     * Generates an initialized instance of {@link com.opencms.flex.util.CmsMessages} for 
     * convenient access to localized resource bundles.<p>
     * 
     * @param bundleName the name of the ResourceBundle to use
     * @param language language indentificator for the locale of the bundle
     * @return CmsMessages a message bundle initialized with the provided values
     */       
    public CmsMessages getMessages(String bundleName, String language) {
        return getMessages(bundleName, language, "", "", null);
    }
    
    /**
     * Generates an initialized instance of {@link com.opencms.flex.util.CmsMessages} for 
     * convenient access to localized resource bundles.<p>
     * 
     * @param bundleName the name of the ResourceBundle to use
     * @param language language indentificator for the locale of the bundle
     * @param defaultLanguage default for the language, will be used 
     *         if language is null or empty String "", and defaultLanguage is not null
     * @return CmsMessages a message bundle initialized with the provided values
     */    
    public CmsMessages getMessages(String bundleName, String language, String defaultLanguage) {
        return getMessages(bundleName, language, "", "", defaultLanguage);
    }
    
    /**
     * Generates an initialized instance of {@link com.opencms.flex.util.CmsMessages} for 
     * convenient access to localized resource bundles.<p>
     * 
     * @param bundleName the name of the ResourceBundle to use
     * @param language language indentificator for the locale of the bundle
     * @param country 2 letter country code for the locale of the bundle 
     * @param variant a vendor or browser-specific variant code
     * @param defaultLanguage default for the language, will be used 
     *         if language is null or empty String "", and defaultLanguage is not null
     * @return CmsMessages a message bundle initialized with the provided values
     * 
     * @see java.util.ResourceBundle
     * @see com.opencms.flex.util.CmsMessages
     */
    public CmsMessages getMessages(String bundleName, String language, String country, String variant, String defaultLanguage) {
        try {
            if ((defaultLanguage != null) && ((language == null) || ("".equals(language)))) {
                language = defaultLanguage;
            }
            if (language == null) language = "";
            if (country == null) country = "";
            if (variant == null) variant = "";
            return new CmsMessages(bundleName, language, country, variant);
        } catch (Throwable t) {
            handleException(t);
        }
        return null;
    }    
    
    /**
     * Returns the processed output of an OpenCms resource in a String.<p>
     * 
     * @param target the target to process
     * @return the processed output of an OpenCms resource in a String
     */
    public String getContent(String target) {
        try {
            I_CmsLauncher launcher = null;
            target = toAbsolute(target);
            try {
                CmsResource resource = getCmsObject().readFileHeader(target);
                launcher = getCmsObject().getLauncherManager().getLauncher(resource.getLauncherType());
            } catch (java.lang.ClassCastException e) {
                // no loader omplementation found
                return "??? " + e.getMessage() + " ???";
            } catch (com.opencms.core.CmsException e) {
                // file might not exist or no read permissions
                return "??? " + e.getMessage() + " ???";
            }
            try {
                if (launcher instanceof CmsJspLoader) {
                    // jsp page
                    CmsJspTemplate template = new CmsJspTemplate();
                    byte[] res = template.getContent(getCmsObject(), target, null, null);
                    return new String(res, getRequestContext().getEncoding());
                } else if (launcher instanceof CmsXmlLauncher) {
                    // XmlTemplate page (will not work if file does not use the standard XmlTemplate class)
                    CmsXmlTemplate template = new CmsXmlTemplate();
                    byte[] res = template.getContent(getCmsObject(), target, null, null);
                    return new String(res, getRequestContext().getEncoding());
                } else if (launcher instanceof CmsDumpLauncher) {
                    // static page
                    CmsFile file = getCmsObject().readFile(target);
                    return new String(file.getContents(), getRequestContext().getEncoding());
                } else if (launcher instanceof CmsLinkLauncher) {
                    // link
                    CmsFile file = getCmsObject().readFile(target);
                    return new String(file.getContents());
                }
            } catch (CmsException ce) {
                return "??? " + ce.getMessage() + " ???";
            } catch (UnsupportedEncodingException uee) {
                return "??? " + uee.getMessage() + " ???";
            }
        } catch (Throwable t) {
            handleException(t);
            return "??? " + t.getMessage() + " ???";
        }
        return "";
    }

    /**
     * Handles any exception that might occur in the context of this element to 
     * ensure that templates are not disturbed.<p>
     * 
     * @param e the exception that was catched
     */
    private void handleException(Throwable t) {
        if (I_CmsLogChannels.C_LOGGING && A_OpenCms.isLogging(I_CmsLogChannels.C_FLEX_LOADER)) {
            A_OpenCms.log(I_CmsLogChannels.C_FLEX_LOADER, Utils.getStackTrace(t));
        } 
        if (! (m_handleExceptions || getRequestContext().currentProject().isOnlineProject())) {    
            if (DEBUG > 0) {        
                System.err.println("Exception in " + this.getClass().getName() + ":");
                if (DEBUG > 1) t.printStackTrace(System.err);
            }
            throw new RuntimeException("Exception in " + this.getClass().getName(), t);
        }
    }
}