Examples of com.esri.gpt.framework.http.HttpClientRequest

com.esri.gpt.framework.http.HttpClientRequest
Provides an interface for the execution of outbound HTTP requests.
This class delegates underlying HTTP related functonality the the Apache HttpClient.
If a forward proxy is in place, the following system properties must be configured at the Java web server level (e.g. Tomcat - catalina.properties)
- http.proxyHost, http.proxyPort, http.nonProxyHosts
- https.proxyHost, https.proxyPort, https.nonProxyHosts
If the forward proxy requires credentials, the following system properties are considered:
- http.proxyUser, http.proxyPassword
- https.proxyUser, https.proxyPassword
The gpt.xml file can be used to set the proxyUser/proxyPassword properties based upon an encrypted password:
<gtpConfig>
<forwardProxyAuth
username=""
password=""
encrypted="true"/>
</gtpConfig>
The above system properties are also used by the Apache Axis module for SOAP based comminication.

   * @return the metadata xml string.
   * @throws IOException if the http request fails due to i/o exception
   */
  private String read(BaseAtomInfo info,String url) throws IOException {
    try {
      HttpClientRequest cr = new HttpClientRequest();
      cr.setUrl(url);
      XmlHandler sh = new XmlHandler(false);
      cr.setContentHandler(sh);
      cr.setCredentialProvider(info.newCredentialProvider());
      cr.setBatchHttpClient(info.getBatchHttpClient());
      try {
        cr.execute();
      } catch (IOException e) {
        return "";
      }      
      Document doc = sh.getDocument();      
      String mdText = XmlIoUtil.domToString(doc);

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    String georssBox = "<georss:box>";
    if(url.length() > 0){
      url = url.substring(0,url.indexOf("?"));
      String params = "&id="+id+"f=json";  
      url = url + params;
      HttpClientRequest cr = new HttpClientRequest();
      cr.setUrl(url);
      String response = Val.chkStr(cr.readResponseAsCharacters());
      if(response.length() > 0){
        JSONObject jso = new JSONObject(response);
          if(jso.has("results")){
            JSONArray results = jso.getJSONArray("results");
            for(int i=0; i < results.length(); i++){

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   * @throws IOException if the http request fails due to i/o exception
   */
  private String read(BaseAtomInfo info, String sourceUri) throws IOException {
    try {
      sourceUri = Val.chkStr(sourceUri).replaceAll("\\{", "%7B").replaceAll("\\}", "%7D");
      HttpClientRequest cr = new HttpClientRequest();
      cr.setUrl(info.newReadMetadataUrl(sourceUri));
      XmlHandler sh = new XmlHandler(false);
      cr.setContentHandler(sh);
      cr.setCredentialProvider(info.newCredentialProvider());
      cr.setBatchHttpClient(info.getBatchHttpClient());
      cr.execute();
      Document doc = sh.getDocument();
      XPath xPath = XPathFactory.newInstance().newXPath();
      Node node = (Node) xPath.evaluate(
          "/feed/entry",
          doc, XPathConstants.NODE);

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  try {
    URI uri = this.getConnectionUri();
    URL url = uri.toURL();
    HttpClientRequest clientRequest = 
      HttpClientRequest.newRequest(HttpClientRequest.MethodName.GET, 
          url.toExternalForm());
    clientRequest.setConnectionTimeMs(getConnectionTimeoutMs());
    clientRequest.setResponseTimeOutMs(getResponseTimeoutMs());
    
    Map map = (Map) 
      this.getRequestContext().extractFromSession(SEARCH_CREDENTIAL_MAP);
    if(map != null) {
      CredentialProvider credProvider = (CredentialProvider) 
        map.get(this.getKey());
      if(credProvider  != null) {
        clientRequest.setCredentialProvider(credProvider);
      }
    }        
    
    clientRequest.execute();
    String response = clientRequest.readResponseAsCharacters();
    InputStream is = null;
    try {
      SearchXslProfile profile = this.readXslProfile();
      String js = Val.chkStr(profile.getResponsexslt());
      //String js = Val.chkStr(this.getFactoryAttributes().get("searchResponseJsT"));

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  URL url = null;
  Exception ex = null;
  try {
    url = new URL(metaUrl);


    HttpClientRequest clientRequest = HttpClientRequest.newRequest(
        HttpClientRequest.MethodName.GET, url.toExternalForm());
    clientRequest.setConnectionTimeMs(getConnectionTimeoutMs());
    clientRequest.setResponseTimeOutMs(getResponseTimeoutMs());
    clientRequest.execute();
    String response = clientRequest.readResponseAsCharacters();
    LOG.log(Level.FINER, "Response from get Metadata url = {0}\n response = \n{1}", new Object[]{url.toExternalForm(), response});
    recordX = new SearchXslRecord();
    this.readXslProfile().readGetMetadataByIDResponse(response, recordX);
  } catch (MalformedURLException e) {
    ex = e;

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    // read the response from the targeted server
    InputStream responseStream = null;
    InputStream wrappedStream = null;
    try {


      HttpClientRequest cr = new HttpClientRequest();
      cr.setUrl(url);
      XmlHandler sh = new XmlHandler(false);
      cr.setContentHandler(sh);
      cr.setCredentialProvider(cp != null ? cp : CredentialProvider.getThreadLocalInstance());
      cr.execute();


      return sh.getDocument();
    } catch (IllegalArgumentException ex) {
      LogUtil.getLogger().log(Level.FINER, "Error accessing host: " + url, ex);
      return null;

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  @Override
protected InputStream openConnection(String connectionString)
  throws HRConnectionException {
  try {


    HttpClientRequest cr = new HttpClientRequest();
    cr.setUrl(connectionString);
    ByteArrayHandler sh = new ByteArrayHandler();
    cr.setContentHandler(sh);
    CredentialProvider cp = getUserName().length()>0 && getUserPassword().length()>0?
      new CredentialProvider(getUserName(),getUserPassword()):
      CredentialProvider.getThreadLocalInstance();
    cr.setCredentialProvider(cp);
    cr.execute();


    return new ByteArrayInputStream(sh.getContent());


  } catch (MalformedURLException ex) {
    throw new HRInvalidUrlException("Invalid URL: " + getHostUrl(), ex);

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  initString = Val.chkStr(initString);


  try {


    HttpClientRequest cr = new HttpClientRequest();
    cr.setUrl(connectionString);
    ByteArrayHandler sh = new ByteArrayHandler();
    StringProvider cprov = new StringProvider(initString,"text/plain");
    cr.setContentHandler(sh);
    cr.setContentProvider(cprov);
    CredentialProvider cp = getUserName().length()>0 && getUserPassword().length()>0?
      new CredentialProvider(getUserName(),getUserPassword()):
      CredentialProvider.getThreadLocalInstance();
    cr.setCredentialProvider(cp);
    cr.execute();


    return new ByteArrayInputStream(sh.getContent());


  } catch (MalformedURLException ex) {
    throw new HRInvalidUrlException("Invalid URL: " + getHostUrl(), ex);

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}


public Content readContent(String sourceUri) throws IOException {
  LOGGER.log(Level.FINER, "Reading metadata of source URI: \"{0}\" through proxy: {1}", new Object[]{sourceUri, this});
  sourceUri = Val.chkStr(sourceUri).replaceAll("\\{", "%7B").replaceAll("\\}", "%7D");
  HttpClientRequest cr = new HttpClientRequest();
  cr.setBatchHttpClient(this.info.getBatchHttpClient());
  cr.setUrl(sourceUri);
  BreakableStringHandler sh = new BreakableStringHandler(criteria!=null? criteria.getFromDate(): null);
  cr.setContentHandler(sh);
  cr.setCredentialProvider(info.newCredentialProvider());
  cr.execute();
  String mdText = sh.getContent();
  LOGGER.log(Level.FINER, "Received metadata of source URI: \"{0}\" through proxy: {1}", new Object[]{sourceUri, this});
  LOGGER.finest(mdText);
  return new Content(sh.getLastModifiedDate(), mdText);
}

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}


public String read(String sourceUri) throws IOException {
  LOGGER.log(Level.FINER, "Reading metadata of source URI: \"{0}\" through proxy: {1}", new Object[]{sourceUri, this});
  sourceUri = Val.chkStr(sourceUri).replaceAll("\\{", "%7B").replaceAll("\\}", "%7D");
  HttpClientRequest cr = new HttpClientRequest();
  cr.setBatchHttpClient(this.info.getBatchHttpClient());
  cr.setUrl(sourceUri);
  StringHandler sh = new StringHandler();
  cr.setContentHandler(sh);
  cr.setCredentialProvider(info.newCredentialProvider());
  cr.execute();
  String mdText = sh.getContent();
  LOGGER.log(Level.FINER, "Received metadata of source URI: \"{0}\" through proxy: {1}", new Object[]{sourceUri, this});
  LOGGER.finest(mdText);
  return mdText;
}

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