| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.manifoldcf.agents.output.solr; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.ConnectException; |
| import java.net.SocketTimeoutException; |
| import java.nio.charset.Charset; |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.apache.http.Header; |
| import org.apache.http.HttpResponse; |
| import org.apache.http.HttpStatus; |
| import org.apache.http.NameValuePair; |
| import org.apache.http.NoHttpResponseException; |
| import org.apache.http.client.HttpClient; |
| import org.apache.http.client.entity.UrlEncodedFormEntity; |
| import org.apache.http.client.methods.HttpGet; |
| import org.apache.http.client.methods.HttpPost; |
| import org.apache.http.client.methods.HttpRequestBase; |
| import org.apache.http.client.params.ClientPNames; |
| import org.apache.http.conn.ClientConnectionManager; |
| import org.apache.http.entity.InputStreamEntity; |
| import org.apache.http.entity.mime.FormBodyPart; |
| import org.apache.http.entity.mime.HttpMultipartMode; |
| import org.apache.http.entity.mime.content.InputStreamBody; |
| import org.apache.http.entity.mime.content.StringBody; |
| import org.apache.http.impl.client.DefaultHttpClient; |
| import org.apache.http.message.BasicHeader; |
| import org.apache.http.message.BasicNameValuePair; |
| import org.apache.http.util.EntityUtils; |
| import org.apache.solr.client.solrj.impl.HttpSolrServer; |
| import org.apache.solr.client.solrj.ResponseParser; |
| import org.apache.solr.client.solrj.SolrRequest; |
| import org.apache.solr.client.solrj.SolrServer; |
| import org.apache.solr.client.solrj.SolrServerException; |
| import org.apache.solr.client.solrj.request.RequestWriter; |
| import org.apache.solr.client.solrj.request.UpdateRequest; |
| import org.apache.solr.client.solrj.response.UpdateResponse; |
| import org.apache.solr.client.solrj.util.ClientUtils; |
| import org.apache.solr.common.SolrException; |
| import org.apache.solr.common.SolrInputDocument; |
| import org.apache.solr.common.params.CommonParams; |
| import org.apache.solr.common.params.ModifiableSolrParams; |
| import org.apache.solr.common.params.SolrParams; |
| import org.apache.solr.common.util.ContentStream; |
| import org.apache.solr.common.util.NamedList; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import java.nio.charset.Charset; |
| |
| /** This class overrides and somewhat changes the behavior of the |
| * SolrJ HttpSolrServer class. The point of all this is simply to get |
| * the right information to Tika. When SolrJ uses GET or POST but not |
| * multipart-post, it does not include multipart headers that Tika uses - |
| * specifically, the name of the document and the length of the document. |
| * Patches have been submitted to the SOLR ticket queue to address this |
| * problem in a method-insensitive way, but so far there has been no sign that |
| * the Solr team is interested in committing them. |
| */ |
| public class ModifiedHttpSolrServer extends HttpSolrServer |
| { |
| // Here we duplicate all the private fields we need |
| |
| private static final String UTF_8 = "UTF-8"; |
| private static final String DEFAULT_PATH = "/select"; |
| |
| private static Charset UTF8_CHARSET; |
| static |
| { |
| try |
| { |
| UTF8_CHARSET = Charset.forName(UTF_8); |
| } |
| catch (Exception e) |
| { |
| e.printStackTrace(); |
| System.exit(-100); |
| UTF8_CHARSET = null; |
| } |
| } |
| |
| private final HttpClient httpClient; |
| private boolean followRedirects = false; |
| private int maxRetries = 0; |
| private boolean useMultiPartPost = true; |
| |
| public ModifiedHttpSolrServer(String baseURL, HttpClient client, ResponseParser parser) { |
| super(baseURL, client, parser); |
| httpClient = client; |
| } |
| |
| @Override |
| public NamedList<Object> request(final SolrRequest request, |
| final ResponseParser processor) throws SolrServerException, IOException { |
| HttpRequestBase method = null; |
| InputStream is = null; |
| SolrParams params = request.getParams(); |
| Collection<ContentStream> streams = requestWriter.getContentStreams(request); |
| String path = requestWriter.getPath(request); |
| if (path == null || !path.startsWith("/")) { |
| path = DEFAULT_PATH; |
| } |
| |
| ResponseParser parser = request.getResponseParser(); |
| if (parser == null) { |
| parser = this.parser; |
| } |
| |
| // The parser 'wt=' and 'version=' params are used instead of the original |
| // params |
| ModifiableSolrParams wparams = new ModifiableSolrParams(params); |
| if (parser != null) { |
| wparams.set(CommonParams.WT, parser.getWriterType()); |
| wparams.set(CommonParams.VERSION, parser.getVersion()); |
| } |
| if (invariantParams != null) { |
| wparams.add(invariantParams); |
| } |
| params = wparams; |
| |
| int tries = maxRetries + 1; |
| try { |
| while( tries-- > 0 ) { |
| // Note: since we aren't do intermittent time keeping |
| // ourselves, the potential non-timeout latency could be as |
| // much as tries-times (plus scheduling effects) the given |
| // timeAllowed. |
| try { |
| if( SolrRequest.METHOD.GET == request.getMethod() ) { |
| if( streams != null ) { |
| throw new SolrException( SolrException.ErrorCode.BAD_REQUEST, "GET can't send streams!" ); |
| } |
| method = new HttpGet( baseUrl + path + ClientUtils.toQueryString( params, false ) ); |
| } |
| else if( SolrRequest.METHOD.POST == request.getMethod() ) { |
| |
| String url = baseUrl + path; |
| boolean hasNullStreamName = false; |
| if (streams != null) { |
| for (ContentStream cs : streams) { |
| if (cs.getName() == null) { |
| hasNullStreamName = true; |
| break; |
| } |
| } |
| } |
| boolean isMultipart = (this.useMultiPartPost || ( streams != null && streams.size() > 1 )) && !hasNullStreamName; |
| |
| LinkedList<NameValuePair> postParams = new LinkedList<NameValuePair>(); |
| if (streams == null || isMultipart) { |
| HttpPost post = new HttpPost(url); |
| post.setHeader("Content-Charset", "UTF-8"); |
| if (!isMultipart) { |
| post.addHeader("Content-Type", |
| "application/x-www-form-urlencoded; charset=UTF-8"); |
| } |
| |
| List<FormBodyPart> parts = new LinkedList<FormBodyPart>(); |
| Iterator<String> iter = params.getParameterNamesIterator(); |
| while (iter.hasNext()) { |
| String p = iter.next(); |
| String[] vals = params.getParams(p); |
| if (vals != null) { |
| for (String v : vals) { |
| if (isMultipart) { |
| parts.add(new FormBodyPart(p, new StringBody(v, Charset.forName("UTF-8")))); |
| } else { |
| postParams.add(new BasicNameValuePair(p, v)); |
| } |
| } |
| } |
| } |
| |
| if (isMultipart && streams != null) { |
| for (ContentStream content : streams) { |
| String contentType = content.getContentType(); |
| if(contentType==null) { |
| contentType = "application/octet-stream"; // default |
| } |
| String contentName = content.getName(); |
| parts.add(new FormBodyPart(contentName, |
| new InputStreamBody( |
| content.getStream(), |
| contentType, |
| content.getName()))); |
| } |
| } |
| |
| if (parts.size() > 0) { |
| ModifiedMultipartEntity entity = new ModifiedMultipartEntity(HttpMultipartMode.STRICT, null, UTF8_CHARSET); |
| for(FormBodyPart p: parts) { |
| entity.addPart(p); |
| } |
| post.setEntity(entity); |
| } else { |
| //not using multipart |
| post.setEntity(new UrlEncodedFormEntity(postParams, "UTF-8")); |
| } |
| |
| method = post; |
| } |
| // It is has one stream, it is the post body, put the params in the URL |
| else { |
| String pstr = ClientUtils.toQueryString(params, false); |
| HttpPost post = new HttpPost(url + pstr); |
| |
| // Single stream as body |
| // Using a loop just to get the first one |
| final ContentStream[] contentStream = new ContentStream[1]; |
| for (ContentStream content : streams) { |
| contentStream[0] = content; |
| break; |
| } |
| if (contentStream[0] instanceof RequestWriter.LazyContentStream) { |
| post.setEntity(new InputStreamEntity(contentStream[0].getStream(), -1) { |
| @Override |
| public Header getContentType() { |
| return new BasicHeader("Content-Type", contentStream[0].getContentType()); |
| } |
| |
| @Override |
| public boolean isRepeatable() { |
| return false; |
| } |
| |
| }); |
| } else { |
| post.setEntity(new InputStreamEntity(contentStream[0].getStream(), -1) { |
| @Override |
| public Header getContentType() { |
| return new BasicHeader("Content-Type", contentStream[0].getContentType()); |
| } |
| |
| @Override |
| public boolean isRepeatable() { |
| return false; |
| } |
| }); |
| } |
| method = post; |
| } |
| } |
| else { |
| throw new SolrServerException("Unsupported method: "+request.getMethod() ); |
| } |
| } |
| catch( NoHttpResponseException r ) { |
| method = null; |
| if(is != null) { |
| is.close(); |
| } |
| // If out of tries then just rethrow (as normal error). |
| if (tries < 1) { |
| throw r; |
| } |
| } |
| } |
| } catch (IOException ex) { |
| throw new SolrServerException("error reading streams", ex); |
| } |
| |
| // XXX client already has this set, is this needed? |
| method.getParams().setParameter(ClientPNames.HANDLE_REDIRECTS, |
| followRedirects); |
| method.addHeader("User-Agent", AGENT); |
| |
| InputStream respBody = null; |
| boolean shouldClose = true; |
| |
| try { |
| // Execute the method. |
| final HttpResponse response = httpClient.execute(method); |
| int httpStatus = response.getStatusLine().getStatusCode(); |
| |
| // Read the contents |
| respBody = response.getEntity().getContent(); |
| |
| // handle some http level checks before trying to parse the response |
| switch (httpStatus) { |
| case HttpStatus.SC_OK: |
| case HttpStatus.SC_BAD_REQUEST: |
| case HttpStatus.SC_CONFLICT: // 409 |
| break; |
| case HttpStatus.SC_MOVED_PERMANENTLY: |
| case HttpStatus.SC_MOVED_TEMPORARILY: |
| if (!followRedirects) { |
| throw new SolrServerException("Server at " + getBaseURL() |
| + " sent back a redirect (" + httpStatus + ")."); |
| } |
| break; |
| default: |
| throw new SolrException(SolrException.ErrorCode.getErrorCode(httpStatus), "Server at " + getBaseURL() |
| + " returned non ok status:" + httpStatus + ", message:" |
| + response.getStatusLine().getReasonPhrase()); |
| |
| } |
| if (processor == null) { |
| // no processor specified, return raw stream |
| NamedList<Object> rsp = new NamedList<Object>(); |
| rsp.add("stream", respBody); |
| // Only case where stream should not be closed |
| shouldClose = false; |
| return rsp; |
| } |
| String charset = EntityUtils.getContentCharSet(response.getEntity()); |
| NamedList<Object> rsp = processor.processResponse(respBody, charset); |
| if (httpStatus != HttpStatus.SC_OK) { |
| String reason = null; |
| try { |
| NamedList err = (NamedList) rsp.get("error"); |
| if (err != null) { |
| reason = (String) err.get("msg"); |
| // TODO? get the trace? |
| } |
| } catch (Exception ex) {} |
| if (reason == null) { |
| StringBuilder msg = new StringBuilder(); |
| msg.append(response.getStatusLine().getReasonPhrase()); |
| msg.append("\n\n"); |
| msg.append("request: " + method.getURI()); |
| reason = java.net.URLDecoder.decode(msg.toString(), UTF_8); |
| } |
| throw new SolrException( |
| SolrException.ErrorCode.getErrorCode(httpStatus), reason); |
| } |
| return rsp; |
| } catch (ConnectException e) { |
| throw new SolrServerException("Server refused connection at: " |
| + getBaseURL(), e); |
| } catch (SocketTimeoutException e) { |
| throw new SolrServerException( |
| "Timeout occured while waiting response from server at: " |
| + getBaseURL(), e); |
| } catch (IOException e) { |
| throw new SolrServerException( |
| "IOException occured when talking to server at: " + getBaseURL(), e); |
| } finally { |
| if (respBody != null && shouldClose) { |
| try { |
| respBody.close(); |
| } catch (Throwable t) {} // ignore |
| } |
| } |
| } |
| |
| @Override |
| public void setFollowRedirects(boolean followRedirects) { |
| super.setFollowRedirects(followRedirects); |
| this.followRedirects = followRedirects; |
| } |
| |
| } |
