/** Generate external process results (if they have not already been generated). */
@Override
public void prepare(ResponseBuilder rb) throws IOException {
SolrParams params = rb.req.getParams();
if (!params.getBool(getName(), false)) {
return;
}
XJoinResults<?> results = (XJoinResults<?>) rb.req.getContext().get(getResultsTag());
if (results != null) {
return;
}
// generate external process results, by passing 'external' prefixed parameters
// from the query string to our factory
String prefix = getName() + "." + XJoinParameters.EXTERNAL_PREFIX + ".";
ModifiableSolrParams externalParams = new ModifiableSolrParams();
for (Iterator<String> it = params.getParameterNamesIterator(); it.hasNext(); ) {
String name = it.next();
if (name.startsWith(prefix)) {
externalParams.set(name.substring(prefix.length()), params.get(name));
}
}
results = factory.getResults(externalParams);
rb.req.getContext().put(getResultsTag(), results);
}
public static String toQueryString(SolrParams params, boolean xml) {
StringBuilder sb = new StringBuilder(128);
try {
String amp = xml ? "&" : "&";
boolean first = true;
Iterator<String> names = params.getParameterNamesIterator();
while (names.hasNext()) {
String key = names.next();
String[] valarr = params.getParams(key);
if (valarr == null) {
sb.append(first ? "?" : amp);
sb.append(key);
first = false;
} else {
for (String val : valarr) {
sb.append(first ? "?" : amp);
sb.append(key);
if (val != null) {
sb.append('=');
sb.append(URLEncoder.encode(val, "UTF-8"));
}
first = false;
}
}
}
} catch (IOException e) {
throw new RuntimeException(e);
} // can't happen
return sb.toString();
}
/**
* Serialize Solr parameters into a String.
*
* @param params the parameters to serialize
* @return a String serialization of the parameters
*/
public static String getCacheKey(SolrParams params) {
StringBuilder out = new StringBuilder();
out.append('{');
Iterator<String> parameterNames = params.getParameterNamesIterator();
while (parameterNames.hasNext()) {
String parameter = parameterNames.next();
out.append(parameter)
.append(":[")
.append(StringUtils.join(params.getParams(parameter), ", "))
.append("]\n");
}
out.append('}');
return out.toString();
}
/**
* Handle 'CREATE' action.
*
* @param req
* @param rsp
* @return true if a modification has resulted that requires persistance of the CoreContainer
* configuration.
* @throws SolrException in case of a configuration error.
*/
protected boolean handleCreateAction(SolrQueryRequest req, SolrQueryResponse rsp)
throws SolrException {
try {
SolrParams params = req.getParams();
String name = params.get(CoreAdminParams.NAME);
CoreDescriptor dcore =
new CoreDescriptor(coreContainer, name, params.get(CoreAdminParams.INSTANCE_DIR));
// fillup optional parameters
String opts = params.get(CoreAdminParams.CONFIG);
if (opts != null) dcore.setConfigName(opts);
opts = params.get(CoreAdminParams.SCHEMA);
if (opts != null) dcore.setSchemaName(opts);
opts = params.get(CoreAdminParams.DATA_DIR);
if (opts != null) dcore.setDataDir(opts);
// Process all property.name=value parameters and set them as name=value core properties
Properties coreProperties = new Properties();
Iterator<String> parameterNamesIterator = params.getParameterNamesIterator();
while (parameterNamesIterator.hasNext()) {
String parameterName = parameterNamesIterator.next();
if (parameterName.startsWith(CoreAdminParams.PROPERTY_PREFIX)) {
String parameterValue = params.get(parameterName);
String propertyName =
parameterName.substring(CoreAdminParams.PROPERTY_PREFIX.length()); // skip prefix
coreProperties.put(propertyName, parameterValue);
}
}
dcore.setCoreProperties(coreProperties);
SolrCore core = coreContainer.create(dcore);
coreContainer.register(name, core, false);
rsp.add("core", core.getName());
return coreContainer.isPersistent();
} catch (Exception ex) {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"Error executing default implementation of CREATE",
ex);
}
}
/** create the FieldAdders that control how each field is indexed */
void prepareFields() {
// Possible future optimization: for really rapid incremental indexing
// from a POST, one could cache all of this setup info based on the params.
// The link from FieldAdder to this would need to be severed for that to happen.
adders = new CSVLoaderBase.FieldAdder[fieldnames.length];
String skipStr = params.get(SKIP);
List<String> skipFields = skipStr == null ? null : StrUtils.splitSmart(skipStr, ',');
CSVLoaderBase.FieldAdder adder = new CSVLoaderBase.FieldAdder();
CSVLoaderBase.FieldAdder adderKeepEmpty = new CSVLoaderBase.FieldAdderEmpty();
for (int i = 0; i < fieldnames.length; i++) {
String fname = fieldnames[i];
// to skip a field, leave the entries in fields and addrs null
if (fname.length() == 0 || (skipFields != null && skipFields.contains(fname))) continue;
boolean keepEmpty = params.getFieldBool(fname, EMPTY, false);
adders[i] = keepEmpty ? adderKeepEmpty : adder;
// Order that operations are applied: split -> trim -> map -> add
// so create in reverse order.
// Creation of FieldAdders could be optimized and shared among fields
String[] fmap = params.getFieldParams(fname, MAP);
if (fmap != null) {
for (String mapRule : fmap) {
String[] mapArgs = colonSplit.split(mapRule, -1);
if (mapArgs.length != 2)
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"Map rules must be of the form 'from:to' ,got '" + mapRule + "'");
adders[i] = new CSVLoaderBase.FieldMapperSingle(mapArgs[0], mapArgs[1], adders[i]);
}
}
if (params.getFieldBool(fname, TRIM, false)) {
adders[i] = new CSVLoaderBase.FieldTrimmer(adders[i]);
}
if (params.getFieldBool(fname, SPLIT, false)) {
String sepStr = params.getFieldParam(fname, SEPARATOR);
char fsep = sepStr == null || sepStr.length() == 0 ? ',' : sepStr.charAt(0);
String encStr = params.getFieldParam(fname, ENCAPSULATOR);
char fenc = encStr == null || encStr.length() == 0 ? (char) -2 : encStr.charAt(0);
String escStr = params.getFieldParam(fname, ESCAPE);
char fesc =
escStr == null || escStr.length() == 0 ? CSVStrategy.ESCAPE_DISABLED : escStr.charAt(0);
CSVStrategy fstrat =
new CSVStrategy(
fsep, fenc, CSVStrategy.COMMENTS_DISABLED, fesc, false, false, false, false);
adders[i] = new CSVLoaderBase.FieldSplitter(fstrat, adders[i]);
}
}
// look for any literal fields - literal.foo=xyzzy
Iterator<String> paramNames = params.getParameterNamesIterator();
while (paramNames.hasNext()) {
String pname = paramNames.next();
if (!pname.startsWith(LITERALS_PREFIX)) continue;
String name = pname.substring(LITERALS_PREFIX.length());
literals.put(name, params.get(pname));
}
}
public NamedList<Object> request(final SolrRequest request, ResponseParser processor)
throws SolrServerException, IOException {
HttpMethod 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 = "/select";
}
ResponseParser parser = request.getResponseParser();
if (parser == null) {
parser = _parser;
}
// The parser 'wt=' and 'version=' params are used instead of the original params
ModifiableSolrParams wparams = new ModifiableSolrParams();
wparams.set(CommonParams.WT, parser.getWriterType());
wparams.set(CommonParams.VERSION, parser.getVersion());
if (params == null) {
params = wparams;
} else {
params = new DefaultSolrParams(wparams, params);
}
if (_invariantParams != null) {
params = new DefaultSolrParams(_invariantParams, params);
}
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 GetMethod(_baseURL + path + ClientUtils.toQueryString(params, false));
} else if (SolrRequest.METHOD.POST == request.getMethod()) {
String url = _baseURL + path;
boolean isMultipart = (streams != null && streams.size() > 1);
if (streams == null || isMultipart) {
PostMethod post = new PostMethod(url);
post.getParams().setContentCharset("UTF-8");
if (!this.useMultiPartPost && !isMultipart) {
post.addRequestHeader(
"Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
}
List<Part> parts = new LinkedList<Part>();
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 (this.useMultiPartPost || isMultipart) {
parts.add(new StringPart(p, v, "UTF-8"));
} else {
post.addParameter(p, v);
}
}
}
}
if (isMultipart) {
int i = 0;
for (ContentStream content : streams) {
final ContentStream c = content;
String charSet = null;
String transferEncoding = null;
parts.add(
new PartBase(c.getName(), c.getContentType(), charSet, transferEncoding) {
@Override
protected long lengthOfData() throws IOException {
return c.getSize();
}
@Override
protected void sendData(OutputStream out) throws IOException {
InputStream in = c.getStream();
try {
IOUtils.copy(in, out);
} finally {
in.close();
}
}
});
}
}
if (parts.size() > 0) {
post.setRequestEntity(
new MultipartRequestEntity(
parts.toArray(new Part[parts.size()]), post.getParams()));
}
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);
PostMethod post = new PostMethod(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.setRequestEntity(
new RequestEntity() {
public long getContentLength() {
return -1;
}
public String getContentType() {
return contentStream[0].getContentType();
}
public boolean isRepeatable() {
return false;
}
public void writeRequest(OutputStream outputStream) throws IOException {
((RequestWriter.LazyContentStream) contentStream[0]).writeTo(outputStream);
}
});
} else {
is = contentStream[0].getStream();
post.setRequestEntity(
new InputStreamRequestEntity(is, contentStream[0].getContentType()));
}
method = post;
}
} else {
throw new SolrServerException("Unsupported method: " + request.getMethod());
}
} catch (NoHttpResponseException r) {
// This is generally safe to retry on
method.releaseConnection();
method = null;
if (is != null) {
is.close();
}
// If out of tries then just rethrow (as normal error).
if ((tries < 1)) {
throw r;
}
// log.warn( "Caught: " + r + ". Retrying..." );
}
}
} catch (IOException ex) {
throw new SolrServerException("error reading streams", ex);
}
method.setFollowRedirects(_followRedirects);
method.addRequestHeader("User-Agent", AGENT);
if (_allowCompression) {
method.setRequestHeader(new Header("Accept-Encoding", "gzip,deflate"));
}
try {
// Execute the method.
// System.out.println( "EXECUTE:"+method.getURI() );
int statusCode = _httpClient.executeMethod(method);
if (statusCode != HttpStatus.SC_OK) {
StringBuilder msg = new StringBuilder();
msg.append(method.getStatusLine().getReasonPhrase());
msg.append("\n\n");
msg.append(method.getStatusText());
msg.append("\n\n");
msg.append("request: " + method.getURI());
throw new SolrException(statusCode, java.net.URLDecoder.decode(msg.toString(), "UTF-8"));
}
// Read the contents
String charset = "UTF-8";
if (method instanceof HttpMethodBase) {
charset = ((HttpMethodBase) method).getResponseCharSet();
}
InputStream respBody = method.getResponseBodyAsStream();
// Jakarta Commons HTTPClient doesn't handle any
// compression natively. Handle gzip or deflate
// here if applicable.
if (_allowCompression) {
Header contentEncodingHeader = method.getResponseHeader("Content-Encoding");
if (contentEncodingHeader != null) {
String contentEncoding = contentEncodingHeader.getValue();
if (contentEncoding.contains("gzip")) {
// log.debug( "wrapping response in GZIPInputStream" );
respBody = new GZIPInputStream(respBody);
} else if (contentEncoding.contains("deflate")) {
// log.debug( "wrapping response in InflaterInputStream" );
respBody = new InflaterInputStream(respBody);
}
} else {
Header contentTypeHeader = method.getResponseHeader("Content-Type");
if (contentTypeHeader != null) {
String contentType = contentTypeHeader.getValue();
if (contentType != null) {
if (contentType.startsWith("application/x-gzip-compressed")) {
// log.debug( "wrapping response in GZIPInputStream" );
respBody = new GZIPInputStream(respBody);
} else if (contentType.startsWith("application/x-deflate")) {
// log.debug( "wrapping response in InflaterInputStream" );
respBody = new InflaterInputStream(respBody);
}
}
}
}
}
return processor.processResponse(respBody, charset);
} catch (HttpException e) {
throw new SolrServerException(e);
} catch (IOException e) {
throw new SolrServerException(e);
} finally {
method.releaseConnection();
if (is != null) {
is.close();
}
}
}