Changeset 24986


Ignore:
Timestamp:
2012-01-26T11:32:05+13:00 (9 years ago)
Author:
sjm84
Message:

Reformatting this file ahead of some changes

File:
1 edited

Legend:

Unmodified
Added
Removed
  • main/trunk/greenstone3/src/java/org/greenstone/gsdl3/action/AppletAction.java

    r16688 r24986  
    44import org.greenstone.gsdl3.util.*;
    55// XML classes
    6 import org.w3c.dom.Node; 
    7 import org.w3c.dom.NodeList; 
    8 import org.w3c.dom.Document; 
    9 import org.w3c.dom.Element; 
     6import org.w3c.dom.Node;
     7import org.w3c.dom.NodeList;
     8import org.w3c.dom.Document;
     9import org.w3c.dom.Element;
    1010
    1111import java.util.HashMap;
     
    1515
    1616/** action class for handling applets */
    17 public class AppletAction extends Action {
     17public class AppletAction extends Action
     18{
    1819
    19       static Logger logger = Logger.getLogger(org.greenstone.gsdl3.action.AppletAction.class.getName());   
     20    static Logger logger = Logger.getLogger(org.greenstone.gsdl3.action.AppletAction.class.getName());
    2021
    21     public Node process (Node message_node) {
    22    
    23     Element message = this.converter.nodeToElement(message_node);
     22    public Node process(Node message_node)
     23    {
    2424
    25     Element request = (Element)GSXML.getChildByTagName(message, GSXML.REQUEST_ELEM);
    26     Element result = this.doc.createElement(GSXML.MESSAGE_ELEM);
    27     Element page_response = this.doc.createElement(GSXML.RESPONSE_ELEM);
    28     result.appendChild(page_response);
     25        Element message = this.converter.nodeToElement(message_node);
    2926
    30     // get the collection and service params
    31     Element cgi_param_list = (Element)GSXML.getChildByTagName(request, GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
    32     HashMap params = GSXML.extractParams(cgi_param_list, false);
     27        Element request = (Element) GSXML.getChildByTagName(message, GSXML.REQUEST_ELEM);
     28        Element result = this.doc.createElement(GSXML.MESSAGE_ELEM);
     29        Element page_response = this.doc.createElement(GSXML.RESPONSE_ELEM);
     30        result.appendChild(page_response);
    3331
    34     // request_type is display (d) or request (r)
    35     String request_type = (String)params.get(GSParams.REQUEST_TYPE);
    36     if (!request_type.equals("d")&&!request_type.equals("r")) {
    37         logger.error("AppletAction Error: the rt arg should be either d or r, instead it was "+request_type+"!");
    38         return result;
    39     }
    40    
    41     String collection = (String)params.get(GSParams.COLLECTION);
    42     boolean coll_specified = true;
    43     String service_name=(String)params.get(GSParams.SERVICE);
    44     String lang = request.getAttribute(GSXML.LANG_ATT);
    45     String uid = request.getAttribute(GSXML.USER_ID_ATT);
    46     String to=null;
    47     if (collection==null||collection.equals("") ) {
    48         coll_specified = false;
    49         to = service_name;
    50     } else {
    51         to = GSPath.appendLink(collection, service_name);
     32        // get the collection and service params
     33        Element cgi_param_list = (Element) GSXML.getChildByTagName(request, GSXML.PARAM_ELEM + GSXML.LIST_MODIFIER);
     34        HashMap params = GSXML.extractParams(cgi_param_list, false);
     35
     36        // request_type is display (d) or request (r)
     37        String request_type = (String) params.get(GSParams.REQUEST_TYPE);
     38        if (!request_type.equals("d") && !request_type.equals("r"))
     39        {
     40            logger.error("AppletAction Error: the rt arg should be either d or r, instead it was " + request_type + "!");
     41            return result;
     42        }
     43
     44        String collection = (String) params.get(GSParams.COLLECTION);
     45        boolean coll_specified = true;
     46        String service_name = (String) params.get(GSParams.SERVICE);
     47        String lang = request.getAttribute(GSXML.LANG_ATT);
     48        String uid = request.getAttribute(GSXML.USER_ID_ATT);
     49        String to = null;
     50        if (collection == null || collection.equals(""))
     51        {
     52            coll_specified = false;
     53            to = service_name;
     54        }
     55        else
     56        {
     57            to = GSPath.appendLink(collection, service_name);
     58        }
     59
     60        if (request_type.equals("r"))
     61        {
     62            // we are processing stuff for the applet send a message to the service, type="query", and take out the something element, and return that as our result - the applet must take xml
     63
     64            Element mr_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
     65            Element mr_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_PROCESS, to, lang, uid);
     66            mr_message.appendChild(mr_request);
     67            // just append all the params for now - should filter out unneeded ones
     68            mr_request.appendChild(this.doc.importNode(cgi_param_list, true));
     69
     70            // process the request
     71            Element mr_response = (Element) this.mr.process(mr_message);
     72            // get the applet data out and pass it back as is.
     73            String path = GSPath.appendLink(GSXML.RESPONSE_ELEM, GSXML.APPLET_DATA_ELEM);
     74            Element applet_info = GSXML.getFirstElementChild(GSXML.getNodeByPath(mr_response, path));
     75            //Element applet_info = (Element)GSXML.getNodeByPath(mr_response, path).getFirstChild();
     76            return applet_info;
     77
     78        }
     79
     80        // get the applet description, and the collection info if a collection is specified
     81
     82        Element mr_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
     83        Element applet_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_DESCRIBE, to, lang, uid);
     84        mr_message.appendChild(applet_request);
     85
     86        Element mr_response = (Element) this.mr.process(mr_message);
     87
     88        // add in the applet info
     89        String path = GSPath.appendLink(GSXML.RESPONSE_ELEM, GSXML.SERVICE_ELEM);
     90        //path = GSPath.appendLink(path, GSXML.APPLET_ELEM);
     91        Element service_elem = (Element) this.doc.importNode(GSXML.getNodeByPath(mr_response, path), true);
     92        Element applet_elem = (Element) GSXML.getChildByTagName(service_elem, GSXML.APPLET_ELEM);
     93        // must handle any params that have values that are not
     94        // necessarily known by the service
     95        // should this be done here or by web receptionist??
     96        // cant really have an applet without web?
     97        editLocalParams(applet_elem, (String) config_params.get(GSConstants.LIBRARY_NAME), collection);
     98        page_response.appendChild(service_elem);
     99
     100        return result;
     101
    52102    }
    53103
    54     if (request_type.equals("r")) {
    55         // we are processing stuff for the applet send a message to the service, type="query", and take out the something element, and return that as our result - the applet must take xml
     104    /**
     105     * this method looks through the PARAMs of the applet description for
     106     * 'library' or 'collection'. If found, the params are set to the
     107     * appropriate values should this be done here or in the receptionist?
     108     */
     109    protected void editLocalParams(Element description, String library_name, String full_collection_name)
     110    {
    56111
    57         Element mr_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
    58         Element mr_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_PROCESS, to, lang, uid);
    59         mr_message.appendChild(mr_request);
    60         // just append all the params for now - should filter out unneeded ones
    61         mr_request.appendChild(this.doc.importNode(cgi_param_list, true));
    62        
    63         // process the request
    64         Element mr_response = (Element)this.mr.process(mr_message);
    65         // get the applet data out and pass it back as is.
    66         String path = GSPath.appendLink(GSXML.RESPONSE_ELEM, GSXML.APPLET_DATA_ELEM);
    67 Element applet_info = GSXML.getFirstElementChild(GSXML.getNodeByPath(mr_response, path));
    68         //Element applet_info = (Element)GSXML.getNodeByPath(mr_response, path).getFirstChild();
    69         return applet_info;
    70        
     112        Node child = description.getFirstChild();
     113        while (child != null)
     114        {
     115            if (child.getNodeType() == Node.ELEMENT_NODE)
     116            {
     117                String param = child.getNodeName();
     118                if (param.equals("PARAM") || param.equals("param"))
     119                {
     120                    String name = ((Element) child).getAttribute("NAME");
     121                    if (name == null || name.equals(""))
     122                    {
     123                        // somethings wrong!!
     124                    }
     125                    else if (name.equals("library"))
     126                    {
     127                        ((Element) child).setAttribute("VALUE", library_name);
     128                    }
     129                    else if (name.equals("collection"))
     130                    {
     131                        ((Element) child).setAttribute("VALUE", full_collection_name);
     132                    }
     133
     134                }
     135            }
     136            child = child.getNextSibling();
     137        }
    71138    }
    72    
    73139
    74     // get the applet description, and the collection info if a collection is specified
    75    
    76     Element mr_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
    77     Element applet_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_DESCRIBE, to, lang, uid);
    78     mr_message.appendChild(applet_request);
    79 
    80    
    81     Element mr_response = (Element)this.mr.process(mr_message);
    82 
    83     // add in the applet info
    84     String path = GSPath.appendLink(GSXML.RESPONSE_ELEM, GSXML.SERVICE_ELEM);
    85     //path = GSPath.appendLink(path, GSXML.APPLET_ELEM);
    86     Element service_elem = (Element)this.doc.importNode(GSXML.getNodeByPath(mr_response, path), true);
    87     Element applet_elem = (Element)GSXML.getChildByTagName(service_elem, GSXML.APPLET_ELEM);
    88     // must handle any params that have values that are not
    89     // necessarily known by the service
    90     // should this be done here or by web receptionist??
    91     // cant really have an applet without web?
    92     editLocalParams(applet_elem, (String)config_params.get(GSConstants.LIBRARY_NAME), collection);
    93     page_response.appendChild(service_elem);
    94    
    95     return result;
    96    
    97     }
    98 
    99     /** this method looks through the PARAMs of the applet description for
    100      * 'library' or 'collection'. If found, the params are set to 
    101      * the appropriate values
    102      * should this be done here or in the receptionist?
    103      */
    104     protected void editLocalParams(Element description, String library_name,
    105                    String full_collection_name) {
    106 
    107     Node child = description.getFirstChild();
    108     while (child != null) {
    109         if (child.getNodeType() == Node.ELEMENT_NODE) {
    110         String param = child.getNodeName();
    111         if (param.equals("PARAM")||param.equals("param")) {
    112             String name = ((Element)child).getAttribute("NAME");
    113             if (name == null || name.equals("")) {
    114             // somethings wrong!!
    115             } else if (name.equals("library")) {
    116             ((Element)child).setAttribute("VALUE", library_name);
    117             } else if (name.equals("collection")) {
    118             ((Element)child).setAttribute("VALUE", full_collection_name);
    119             }
    120            
    121         }
    122         }
    123         child = child.getNextSibling();
    124     }
    125     }
    126    
    127140}
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