Example usage for java.util Map isEmpty

Introduction

In this page you can find the example usage for java.util Map isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this map contains no key-value mappings.

Usage

From source file:com.ultrapower.eoms.common.plugin.ecside.util.ECSideUtils.java

 public static String getDefaultSortSQL(Map map){
      // ww w. j  av  a2s.  c om
   StringBuffer rs=new StringBuffer();
   if (map!=null && !map.isEmpty()){
      for (Iterator itor=map.keySet().iterator();itor.hasNext();){
         Object field=itor.next();
         String ord=(String)map.get(field);
         rs.append(" ORDER BY ").append(field).append(" ").append(ord);
         break;
      }
   }
      
   return rs.toString();
}

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From source file:com.mywork.framework.util.RemoteHttpUtil.java

/**
 * ???json?post?/*from w  ww .  j ava 2  s  . c  om*/
 *
 * @throws IOException
 *
 */
public static String fetchJsonHttpResponse(String contentUrl, Map<String, String> headerMap, String jsonBody)
        throws IOException {
    Executor executor = Executor.newInstance(httpClient);
    Request request = Request.Post(contentUrl);
    if (headerMap != null && !headerMap.isEmpty()) {
        for (Map.Entry<String, String> m : headerMap.entrySet()) {
            request.addHeader(m.getKey(), m.getValue());
        }
    }
    if (jsonBody != null) {
        request.bodyString(jsonBody, ContentType.APPLICATION_JSON);
    }
    long start = System.currentTimeMillis();
    String response = executor.execute(request).returnContent().asString();
    logger.info("url = " + contentUrl + " request spend time = " + (System.currentTimeMillis() - start));
    return response;
}

---

From source file:com.mywork.framework.util.RemoteHttpUtil.java

/**
 * ???json?post?/* ww  w.  j  av a  2  s .  c  o m*/
 * 
 * @throws IOException
 * @throws
 * 
 */
public static String fetchJsonHttpResponse(String contentUrl, Map<String, String> headerMap,
        JsonObject bodyJson) throws IOException {
    Executor executor = Executor.newInstance(httpClient);
    Request request = Request.Post(contentUrl);
    if (headerMap != null && !headerMap.isEmpty()) {
        for (Map.Entry<String, String> m : headerMap.entrySet()) {
            request.addHeader(m.getKey(), m.getValue());
        }
    }
    if (bodyJson != null) {
        request.bodyString(bodyJson.toString(), ContentType.APPLICATION_JSON);
    }
    return executor.execute(request).returnContent().asString();
}

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From source file:com.exampleka.jksonlib.JacksonRequest.java

/**
 * Converts a base URL, endpoint, and parameters into a full URL
 *
 * @param method The {@link com.android.volley.Request.Method} of the URL
 * @param baseUrl The base URL//from  w ww  .j  a  v  a  2s .c  o m
 * @param endpoint The endpoint being hit
 * @param params The parameters to be appended to the URL if a GET method is used
 *
 * @return The full URL
 */
private static String getUrl(int method, String baseUrl, String endpoint, Map<String, String> params) {
    if (params != null) {
        for (Map.Entry<String, String> entry : params.entrySet()) {
            if (entry.getValue() == null || entry.getValue().equals("null")) {
                entry.setValue("");
            }
        }
    }

    if (method == Method.GET && params != null && !params.isEmpty()) {
        final StringBuilder result = new StringBuilder(baseUrl + endpoint);
        final int startLength = result.length();
        for (String key : params.keySet()) {
            try {
                final String encodedKey = URLEncoder.encode(key, "UTF-8");
                final String encodedValue = URLEncoder.encode(params.get(key), "UTF-8");
                if (result.length() > startLength) {
                    result.append("&");
                } else {
                    result.append("?");
                }
                result.append(encodedKey);
                result.append("=");
                result.append(encodedValue);
            } catch (Exception e) {
            }
        }
        return result.toString();
    } else {
        return baseUrl + endpoint;
    }
}

---

From source file:eu.squadd.reflections.mapper.ServiceModelTranslator.java

private static void assignMixedTypesValue(Class sourceType, Method getter, Object sourceValue, Class destType,
        Method setter, Object destInstance) {
    System.out.println("Source collection doesn't match the one on destination side, resolve their types...");
    if (sourceValue == null || destInstance == null)
        return;/*from  ww w.  j a  v  a 2  s. c o m*/
    if (Collection.class.isAssignableFrom(sourceType)) {
        if (((Collection) sourceValue).isEmpty())
            return;

        Class sourceArgClass = detectSourceCollectionPayload(getter);
        if (sourceArgClass == null) {
            System.err.println("Failed to determine source Collection payload type, operation aborted !!!");
            return;
        }
        // if source is a collection then destination must be a Map
        Map<Integer, Class> destMapTypes = detectDestMapPayload(setter);
        if (destMapTypes.isEmpty() || destMapTypes.size() != 2) {
            System.err.println("Failed to determine destination Map payload types, operation aborted !!!");
            return;
        }
        Class firstDestArgClass = destMapTypes.get(0);
        Class secordDestArgsClass = destMapTypes.get(1);

        System.out.println("*** Both Collection types sorted, populating values...");
        Map destItems = createMapOfTypes(firstDestArgClass, secordDestArgsClass);
        //for (Object key : sourceItems.entrySet()) {
        Collection sourceItems = (Collection) sourceValue;
        Iterator it = sourceItems.iterator();
        Integer i = 0;
        while (it.hasNext()) {
            Object element = transposeModel(sourceArgClass, secordDestArgsClass, it.next());
            destItems.put(++i, element);
        }
        try {
            setter.invoke(destInstance, destItems);

        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
            Logger.getLogger(ServiceModelTranslator.class.getName()).log(Level.SEVERE, null, ex);
        }
        System.out.println("*** done");
    } else if (Map.class.isAssignableFrom(sourceType)) {
        if (((Map) sourceValue).isEmpty())
            return;

        Map<Integer, Class> sourceMapTypes = detectSourceMapPayload(getter);
        if (sourceMapTypes.isEmpty() || sourceMapTypes.size() != 2) {
            System.err.println("Failed to determine source Map payload types, operation aborted !!!");
            return;
        }
        //Class firstSourceArgClass = sourceMapTypes.get(0); // dummy, not used anywere
        Class secondSourceArgClass = sourceMapTypes.get(1);
        Map sourceItems = (Map) sourceValue;

        // if source is a Map then destination must be a Collection
        Class destArgClass = detectDestCollectionPayload(setter);
        if (destArgClass == null) {
            System.err
                    .println("Failed to determine destination Collection payload type, operation aborted !!!");
            return;
        }
        Collection destItems;
        switch (destType.getName()) {
        case "java.util.List":
            destItems = createListOfType(destArgClass);
            break;
        case "java.util.Set":
            destItems = createSetOfType(destArgClass);
            break;
        default:
            System.out.println("4: Unrecognized collection, can't populate values");
            return;
        }
        for (Object value : sourceItems.values()) {
            Object destValue = transposeModel(secondSourceArgClass, destArgClass, value);
            destItems.add(destValue);
        }
        try {
            setter.invoke(destInstance, destItems);

        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
            Logger.getLogger(ServiceModelTranslator.class.getName()).log(Level.SEVERE, null, ex);
        }
        System.out.println("*** done");
    } else {
        System.out.println("4: Unrecognized collection type, cannot proceed, type: " + sourceType.getName());
    }
}

---

From source file:net.pms.util.OpenSubtitle.java

public static Map<String, Object> findSubs(File f, RendererConfiguration r) throws IOException {
    Map<String, Object> res = findSubs(getHash(f), f.length(), null, null, r);
    if (res.isEmpty()) { // no good on hash! try imdb
        String imdb = ImdbUtil.extractImdb(f);
        if (StringUtils.isEmpty(imdb)) {
            imdb = fetchImdbId(f);/* w ww  .  j  a  v  a 2  s  . c o m*/
        }
        res = findSubs(null, 0, imdb, null, r);
    }
    if (res.isEmpty()) { // final try, use the name
        res = querySubs(f.getName(), r);
    }
    return res;
}

---

From source file:com.asakusafw.workflow.executor.TaskExecutors.java

private static String encodeBatchArguments(Map<String, String> arguments) {
    if (arguments.isEmpty()) {
        // NOTE: never empty for windows
        return ",";
    }//from  ww w  .  j a  v a2  s .c  o m
    StringBuilder buf = new StringBuilder();
    arguments.forEach((k, v) -> {
        if (buf.length() != 0) {
            buf.append(',');
        }
        escape(buf, k);
        buf.append('=');
        escape(buf, v);
    });
    return buf.toString();
}

---

From source file:org.yardstickframework.gridgain.GridGainNode.java

/**
 * @param springCfgPath Spring configuration file path.
 * @return Grid configuration./*from w ww  .j a  va 2  s  .c om*/
 * @throws Exception If failed.
 */
private static GridConfiguration loadConfiguration(String springCfgPath) throws Exception {
    URL url;

    try {
        url = new URL(springCfgPath);
    } catch (MalformedURLException e) {
        url = GridUtils.resolveGridGainUrl(springCfgPath);

        if (url == null)
            throw new GridException("Spring XML configuration path is invalid: " + springCfgPath
                    + ". Note that this path should be either absolute or a relative local file system path, "
                    + "relative to META-INF in classpath or valid URL to GRIDGAIN_HOME.", e);
    }

    GenericApplicationContext springCtx;

    try {
        springCtx = new GenericApplicationContext();

        new XmlBeanDefinitionReader(springCtx).loadBeanDefinitions(new UrlResource(url));

        springCtx.refresh();
    } catch (BeansException e) {
        throw new Exception("Failed to instantiate Spring XML application context [springUrl=" + url + ", err="
                + e.getMessage() + ']', e);
    }

    Map<String, GridConfiguration> cfgMap;

    try {
        cfgMap = springCtx.getBeansOfType(GridConfiguration.class);
    } catch (BeansException e) {
        throw new Exception(
                "Failed to instantiate bean [type=" + GridConfiguration.class + ", err=" + e.getMessage() + ']',
                e);
    }

    if (cfgMap == null || cfgMap.isEmpty())
        throw new Exception("Failed to find grid configuration in: " + url);

    return cfgMap.values().iterator().next();
}

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From source file:Main.java

public static void updateNodeToXml(String nodeXpathStr, String xmlFilePath, String value,
        Map<String, String> attr) throws Exception {
    Document doc = null;//  ww w  .ja v a2 s .  c  o  m
    if (xmlFilePath == null || nodeXpathStr == null)
        throw new Exception("some parameters can not be null!");
    doc = dombuilder.parse(new File(xmlFilePath));
    Node pNode = (Node) xpath.compile(nodeXpathStr).evaluate(doc, XPathConstants.NODE);
    if (pNode == null)
        throw new Exception("can not find the node specified in nodeXpathStr!");
    ;
    pNode.setTextContent(value);

    if (attr != null && !attr.isEmpty()) {
        for (String key : attr.keySet())
            ((Element) pNode).setAttribute(key, attr.get(key));
    }

    writeToXmlFile(doc, xmlFilePath);
}

---

From source file:org.apache.synapse.transport.passthru.util.PassThroughTransportUtils.java

/**
 * Remove unwanted headers from the http response of outgoing request. These are headers which
 * should be dictated by the transport and not the user. We remove these as these may get
 * copied from the request messages//from  www. j a v a 2s  . com
 *
 * @param msgContext the Axis2 Message context from which these headers should be removed
 * @param targetConfiguration configuration for the passThrough handler
 */
public static void removeUnwantedHeaders(MessageContext msgContext, TargetConfiguration targetConfiguration) {
    Map transportHeaders = (Map) msgContext.getProperty(MessageContext.TRANSPORT_HEADERS);
    Map excessHeaders = (Map) msgContext.getProperty(NhttpConstants.EXCESS_TRANSPORT_HEADERS);

    if (transportHeaders != null && !transportHeaders.isEmpty()) {
        //a hack which takes the original content header
        if (transportHeaders.get(HTTP.CONTENT_LEN) != null) {
            msgContext.setProperty(PassThroughConstants.ORGINAL_CONTEN_LENGTH,
                    transportHeaders.get(HTTP.CONTENT_LEN));
        }

        removeUnwantedHeadersFromHeaderMap(transportHeaders, targetConfiguration);
    }

    if (excessHeaders != null && !excessHeaders.isEmpty()) {
        removeUnwantedHeadersFromHeaderMap(excessHeaders, targetConfiguration);
    }

}

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