Package org.mycore.solr.proxy

Class MCRSolrProxyServlet

java.lang.Object

jakarta.servlet.GenericServlet

jakarta.servlet.http.HttpServlet

org.mycore.frontend.servlets.MCRServlet

org.mycore.solr.proxy.MCRSolrProxyServlet

All Implemented Interfaces:

jakarta.servlet.Servlet, jakarta.servlet.ServletConfig, Serializable

public class MCRSolrProxyServlet
extends MCRServlet

This class implements a proxy for access to the SOLR backend.

With the following configuration properties you can manipulate the response header. The entries will be replace the attributes of the incomming header. If the new attribute text is empty, it will be remove the attribute.

MCR.Solr.HTTPResponseHeader.{response_header_attribute_name}={new_response_header_attribute} MCR.Solr.HTTPResponseHeader....=

You can set the maximum of connections to the SOLR server with the property

MCR.Solr.SelectProxy.MaxConnections={number}

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MAP_KEY	Attribute key to store Query parameters as Map<String, String[]> for SOLR.
static final String	QUERY_CORE_PARAMETER
static final String	QUERY_HANDLER_PAR_NAME
static final String	QUERY_KEY	Attribute key to store a SolrQuery.

Fields inherited from class org.mycore.frontend.servlets.MCRServlet

ATTR_MYCORE_SESSION, CURRENT_THREAD_NAME_KEY, INITIAL_SERVLET_NAME_KEY

Constructor Summary

Constructors

Constructor	Description
MCRSolrProxyServlet()

Method Summary

Modifier and Type	Method	Description
void	destroy()
protected void	doGetPost(MCRServletJob job)	This method should be overwritten by other servlets.
void	init()

Methods inherited from class org.mycore.frontend.servlets.MCRServlet

allowCrossDomainRequests, buildRedirectURL, cleanupMCRSession, doGet, doGet, doPost, doPost, getErrorI18N, getLastModified, getLayoutService, getProperty, getReferer, getServletBaseURL, getSession, handleException, initializeMCRSession, render, reportException, think, toReferrer, toReferrer

Methods inherited from class jakarta.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, service, service

Methods inherited from class jakarta.servlet.GenericServlet

getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MAP_KEY

public static final String MAP_KEY

Attribute key to store Query parameters as Map<String, String[]> for SOLR. This takes precedence over any HttpServletRequest parameter.

QUERY_KEY

public static final String QUERY_KEY

Attribute key to store a SolrQuery. This takes precedence over MAP_KEY or any HttpServletRequest parameter.

QUERY_HANDLER_PAR_NAME

public static final String QUERY_HANDLER_PAR_NAME

See Also:

• Constant Field Values

QUERY_CORE_PARAMETER

public static final String QUERY_CORE_PARAMETER

See Also:

• Constant Field Values

Constructor Details

MCRSolrProxyServlet

public MCRSolrProxyServlet()

Method Details

doGetPost

protected void doGetPost(MCRServletJob job)
                  throws Exception

Description copied from class: MCRServlet

This method should be overwritten by other servlets. As a default response we indicate the HTTP 1.1 status code 501 (Not Implemented).

Overrides:

doGetPost in class MCRServlet

Throws:

Exception

init

public void init()
          throws jakarta.servlet.ServletException

Overrides:

init in class MCRServlet

Throws:

jakarta.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface jakarta.servlet.Servlet

Overrides:

destroy in class jakarta.servlet.GenericServlet