Changeset 24991


Ignore:
Timestamp:
01/26/12 11:40:18 (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/ProcessAction.java

    r16688 r24991  
    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;
     
    1414import java.io.File;
    1515
    16 public class ProcessAction extends Action {
    17    
    18     /** process a request */
    19     public Node process (Node message_node) {
     16public class ProcessAction extends Action
     17{
    2018
    21     Element message = this.converter.nodeToElement(message_node);
     19    /** process a request */
     20    public Node process(Node message_node)
     21    {
    2222
    23     // the result
    24     Element result = this.doc.createElement(GSXML.MESSAGE_ELEM);
    25     Element page_response = this.doc.createElement(GSXML.RESPONSE_ELEM);
    26     result.appendChild(page_response);
     23        Element message = this.converter.nodeToElement(message_node);
    2724
    28     // assume only one request
    29     Element request = (Element)GSXML.getChildByTagName(message, GSXML.REQUEST_ELEM);
     25        // the result
     26        Element result = this.doc.createElement(GSXML.MESSAGE_ELEM);
     27        Element page_response = this.doc.createElement(GSXML.RESPONSE_ELEM);
     28        result.appendChild(page_response);
    3029
    31     // get the param list
    32     Element cgi_param_list = (Element)GSXML.getChildByTagName(request, GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
    33     HashMap params = GSXML.extractParams(cgi_param_list, false);
    34     String service_name = (String) params.get(GSParams.SERVICE);
    35     String cluster_name = (String) params.get(GSParams.CLUSTER);
    36     String response_only_p = (String)params.get(GSParams.RESPONSE_ONLY);
    37     boolean response_only = false;
    38     if (response_only_p!=null) {
    39         response_only = (response_only_p.equals("1")?true:false);
    40     }
    41     String request_type = (String) params.get(GSParams.REQUEST_TYPE);
    42     String lang = request.getAttribute(GSXML.LANG_ATT);
    43     String uid = request.getAttribute(GSXML.USER_ID_ATT);
    44     // what is carried out depends on the request_type
    45     // if rt=d, then a describe request is done,
    46     // is rt=r, a request and then a describe request is done
    47     // if rt=s, a status request is done.
     30        // assume only one request
     31        Element request = (Element) GSXML.getChildByTagName(message, GSXML.REQUEST_ELEM);
    4832
    49     // if ro=1, then this calls for a process only page - we do the request
    50     // (rt should be r or s) and just give the response straight back
    51     // without any page processing
     33        // get the param list
     34        Element cgi_param_list = (Element) GSXML.getChildByTagName(request, GSXML.PARAM_ELEM + GSXML.LIST_MODIFIER);
     35        HashMap params = GSXML.extractParams(cgi_param_list, false);
     36        String service_name = (String) params.get(GSParams.SERVICE);
     37        String cluster_name = (String) params.get(GSParams.CLUSTER);
     38        String response_only_p = (String) params.get(GSParams.RESPONSE_ONLY);
     39        boolean response_only = false;
     40        if (response_only_p != null)
     41        {
     42            response_only = (response_only_p.equals("1") ? true : false);
     43        }
     44        String request_type = (String) params.get(GSParams.REQUEST_TYPE);
     45        String lang = request.getAttribute(GSXML.LANG_ATT);
     46        String uid = request.getAttribute(GSXML.USER_ID_ATT);
     47        // what is carried out depends on the request_type
     48        // if rt=d, then a describe request is done,
     49        // is rt=r, a request and then a describe request is done
     50        // if rt=s, a status request is done.
    5251
     52        // if ro=1, then this calls for a process only page - we do the request
     53        // (rt should be r or s) and just give the response straight back
     54        // without any page processing
    5355
    54     // where to send requests
    55     String to;
    56     if (cluster_name != null) {
    57        
    58         to = GSPath.appendLink(cluster_name, service_name);
    59     } else {
    60         to = service_name;
     56        // where to send requests
     57        String to;
     58        if (cluster_name != null)
     59        {
     60
     61            to = GSPath.appendLink(cluster_name, service_name);
     62        }
     63        else
     64        {
     65            to = service_name;
     66        }
     67
     68        if (!request_type.equals("d"))
     69        {
     70            // if rt=s or rt=r, do the request
     71
     72            Element mr_query_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
     73            String request_type_att;
     74            Element param_list = null;
     75            if (request_type.equals("s"))
     76            { // status
     77                request_type_att = GSXML.REQUEST_TYPE_STATUS;
     78                param_list = this.doc.createElement(GSXML.PARAM_ELEM + GSXML.LIST_MODIFIER);
     79                Element param = this.doc.createElement(GSXML.PARAM_ELEM);
     80                param.setAttribute(GSXML.NAME_ATT, GSParams.PROCESS_ID);
     81                param.setAttribute(GSXML.VALUE_ATT, (String) params.get(GSParams.PROCESS_ID));
     82                param_list.appendChild(param);
     83            }
     84            else
     85            {
     86                request_type_att = GSXML.REQUEST_TYPE_PROCESS;
     87                // add in the service params - except the ones only used by the action
     88                HashMap service_params = (HashMap) params.get("s1");
     89                if (service_params != null)
     90                {
     91                    param_list = this.doc.createElement(GSXML.PARAM_ELEM + GSXML.LIST_MODIFIER);
     92                    GSXML.addParametersToList(this.doc, param_list, service_params);
     93                }
     94
     95            }
     96            Element mr_query_request = GSXML.createBasicRequest(this.doc, request_type_att, to, lang, uid);
     97            if (param_list != null)
     98            {
     99                mr_query_request.appendChild(param_list);
     100            }
     101            mr_query_message.appendChild(mr_query_request);
     102
     103            Element mr_query_response = (Element) this.mr.process(mr_query_message);
     104            Element result_response = (Element) GSXML.getChildByTagName(mr_query_response, GSXML.RESPONSE_ELEM);
     105
     106            if (response_only)
     107            {
     108                // just send the reponse as is
     109                return result_response;
     110            }
     111
     112            // else append the contents of the response to the page - just the status elem for now
     113            Element status = (Element) GSXML.getChildByTagName(result_response, GSXML.STATUS_ELEM);
     114            page_response.appendChild(this.doc.importNode(status, true));
     115        }
     116
     117        // another part of the page is the service description
     118
     119        // request the service info for the selected service - should be cached
     120        Element mr_info_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
     121        Element mr_info_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_DESCRIBE, to, lang, uid);
     122        mr_info_message.appendChild(mr_info_request);
     123        Element mr_info_response = (Element) this.mr.process(mr_info_message);
     124
     125        String path = GSXML.RESPONSE_ELEM;
     126        path = GSPath.appendLink(path, GSXML.SERVICE_ELEM);
     127        Element description = (Element) this.doc.importNode(GSXML.getNodeByPath(mr_info_response, path), true);
     128
     129        page_response.appendChild(description);
     130
     131        return result;
    61132    }
    62133
    63     if (!request_type.equals("d")) {
    64         // if rt=s or rt=r, do the request
    65        
    66         Element mr_query_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
    67         String request_type_att;
    68         Element param_list = null;
    69         if (request_type.equals("s")) { // status
    70         request_type_att = GSXML.REQUEST_TYPE_STATUS;
    71         param_list = this.doc.createElement(GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
    72         Element param = this.doc.createElement(GSXML.PARAM_ELEM);
    73         param.setAttribute(GSXML.NAME_ATT, GSParams.PROCESS_ID);
    74         param.setAttribute(GSXML.VALUE_ATT, (String)params.get(GSParams.PROCESS_ID));
    75         param_list.appendChild(param);
    76         } else {
    77         request_type_att = GSXML.REQUEST_TYPE_PROCESS;
    78         // add in the service params - except the ones only used by the action
    79         HashMap service_params = (HashMap)params.get("s1");
    80         if (service_params != null) {
    81             param_list = this.doc.createElement(GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
    82             GSXML.addParametersToList(this.doc, param_list, service_params);
     134    protected Element getServiceParamList(Element cgi_param_list)
     135    {
     136
     137        Element new_param_list = this.doc.createElement(GSXML.PARAM_ELEM + GSXML.LIST_MODIFIER);
     138        Element param;
     139        NodeList cgi_params = cgi_param_list.getChildNodes();
     140        for (int i = 0; i < cgi_params.getLength(); i++)
     141        {
     142            Element p = (Element) cgi_params.item(i);
     143            String name = p.getAttribute(GSXML.NAME_ATT);
     144            if (name.equals(GSParams.SERVICE) || name.equals(GSParams.REQUEST_TYPE) || name.equals(GSParams.CLUSTER))
     145            {
     146                continue;
     147            }
     148            // else add it in to the list
     149            new_param_list.appendChild(this.doc.importNode(p, true));
    83150        }
    84        
    85         }
    86         Element mr_query_request = GSXML.createBasicRequest(this.doc, request_type_att, to, lang, uid);
    87         if (param_list != null) {
    88         mr_query_request.appendChild(param_list);
    89         }
    90         mr_query_message.appendChild(mr_query_request);
    91        
    92         Element mr_query_response = (Element)this.mr.process(mr_query_message);
    93         Element result_response = (Element)GSXML.getChildByTagName(mr_query_response, GSXML.RESPONSE_ELEM);
    94        
    95         if (response_only) {
    96         // just send the reponse as is
    97         return result_response;
    98         }
    99        
    100         // else append the contents of the response to the page - just the status elem for now
    101         Element status = (Element)GSXML.getChildByTagName(result_response, GSXML.STATUS_ELEM);
    102         page_response.appendChild(this.doc.importNode(status, true));
     151        return new_param_list;
    103152    }
    104    
    105 
    106     // another part of the page is the service description
    107 
    108     // request the service info for the selected service - should be cached
    109     Element mr_info_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
    110     Element mr_info_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_DESCRIBE, to, lang, uid);
    111     mr_info_message.appendChild(mr_info_request);
    112     Element mr_info_response = (Element) this.mr.process(mr_info_message);
    113 
    114     String path = GSXML.RESPONSE_ELEM;
    115     path = GSPath.appendLink(path, GSXML.SERVICE_ELEM);
    116     Element description = (Element)this.doc.importNode(GSXML.getNodeByPath(mr_info_response, path), true);
    117 
    118     page_response.appendChild(description);
    119 
    120     return result;
    121     }
    122 
    123     protected Element getServiceParamList(Element cgi_param_list) {
    124 
    125     Element new_param_list = this.doc.createElement(GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
    126     Element param;
    127     NodeList cgi_params = cgi_param_list.getChildNodes();
    128     for (int i=0; i<cgi_params.getLength(); i++) {
    129         Element p = (Element) cgi_params.item(i);
    130         String name = p.getAttribute(GSXML.NAME_ATT);
    131         if (name.equals(GSParams.SERVICE) || name.equals(GSParams.REQUEST_TYPE) || name.equals(GSParams.CLUSTER)) {
    132         continue;
    133         }
    134         // else add it in to the list
    135         new_param_list.appendChild(this.doc.importNode(p, true));
    136     }
    137     return new_param_list;
    138     }
    139153}
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