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• BaseRequest.java

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com.microsoft.graph.http.BaseRequest Maven / Gradle / Ivy

// ------------------------------------------------------------------------------
// Copyright (c) 2017 Microsoft Corporation
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sub-license, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// ------------------------------------------------------------------------------

package com.microsoft.graph.http;

import java.net.URI;
import javax.ws.rs.core.UriBuilder;

import com.microsoft.graph.concurrency.ICallback;
import com.microsoft.graph.core.IBaseClient;
import com.microsoft.graph.httpcore.middlewareoption.IShouldRedirect;
import com.microsoft.graph.httpcore.middlewareoption.IShouldRetry;
import com.microsoft.graph.httpcore.middlewareoption.RedirectOptions;
import com.microsoft.graph.httpcore.middlewareoption.RetryOptions;
import com.microsoft.graph.options.FunctionOption;
import com.microsoft.graph.options.QueryOption;
import com.microsoft.graph.core.ClientException;
import com.microsoft.graph.core.Constants;
import com.microsoft.graph.options.HeaderOption;
import com.microsoft.graph.options.Option;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

/**
 * An HTTP request
 */
public abstract class BaseRequest implements IHttpRequest {

    /**
     * The request stats header name
     */
    private static final String REQUEST_STATS_HEADER_NAME = "SdkVersion";

    /**
     * The request stats header value format string
     */
    public static final String REQUEST_STATS_HEADER_VALUE_FORMAT_STRING = "graph-java/v%s";

    /**
     * The HTTP method for this request
     */
    private HttpMethod method;

    /**
     * The URL for this request
     */
    private final String requestUrl;

    /**
     * The backing client for this request
     */
    private final IBaseClient client;

    /**
     * The header options for this request
     */
    private final List headersOptions;

    /**
     * The query options for this request
     */
    protected final List queryOptions;

    /**
     * The function options for this request
     */
    protected final List functionOptions;

    /**
     * The class for the response
     */
    private final Class responseClass;

    /**
     * Value to pass to setUseCaches in connection
     */
    private boolean useCaches;
    
    /**
     * MaxRedirects of every request
     */
    private int maxRedirects = RedirectOptions.DEFAULT_MAX_REDIRECTS;
    
    /**
     * ShouldRedirect callback for every request
     */
    private IShouldRedirect shouldRedirect = RedirectOptions.DEFAULT_SHOULD_REDIRECT;
    
    /**
     * Max redirects for every request
     */
    private int maxRetries = RetryOptions.DEFAULT_MAX_RETRIES;
    
    /**
     * Delay in seconds for every request
     */
    private long delay = RetryOptions.DEFAULT_DELAY;
    
    /**
     * Callback before doing a retry
     */
    private IShouldRetry shouldRetry = RetryOptions.DEFAULT_SHOULD_RETRY;

    /**
     * Creates the request
     *
     * @param requestUrl    the URL to make the request against
     * @param client        the client which can issue the request
     * @param options       the options for this request
     * @param responseClass the class for the response
     */
    public BaseRequest(final String requestUrl,
                       final IBaseClient client,
                       final List options,
                       final Class responseClass) {
        this.requestUrl = requestUrl;
        this.client = client;
        this.responseClass = responseClass;

        headersOptions = new ArrayList<>();
        queryOptions = new ArrayList<>();
        functionOptions = new ArrayList<>();

        if (options != null) {
            for (final Option option : options) {
                if (option instanceof HeaderOption) {
                    headersOptions.add((HeaderOption) option);
                }
                if (option instanceof QueryOption) {
                    queryOptions.add((QueryOption) option);
                }

                if (option instanceof FunctionOption) {
                    functionOptions.add((FunctionOption) option);
                }
            }
        }
        final HeaderOption requestStatsHeader = new HeaderOption(REQUEST_STATS_HEADER_NAME,
                String.format(REQUEST_STATS_HEADER_VALUE_FORMAT_STRING, Constants.VERSION_NAME));
        headersOptions.add(requestStatsHeader);
    }

    /**
     * Gets the request URL
     *
     * @return the request URL
     */
    @Override
    public URL getRequestUrl() {
        String requestUrl = addFunctionParameters();
        URI baseUrl = URI.create(requestUrl);
        final UriBuilder uriBuilder = UriBuilder.fromUri(baseUrl);

        for (final QueryOption option : queryOptions) {
        	uriBuilder.queryParam(option.getName(), option.getValue().toString());
        }

        try {
            return new URL(uriBuilder.build().toString());
        } catch (final MalformedURLException e) {
        	if (this instanceof CustomRequest) {
        		this.getClient().getLogger().logError("Invalid custom URL: " + uriBuilder.toString(), e);
        	} else {
        		throw new ClientException("Invalid URL: " + uriBuilder.toString(), e);
        	}
        }
		return null;
    }

    private String addFunctionParameters() {
        final StringBuilder requestUrl = new StringBuilder(this.requestUrl);

        if (!getFunctionOptions().isEmpty()) {
            requestUrl.append("(");

            for (int i = 0; i < functionOptions.size(); i++) {
                final FunctionOption option = functionOptions.get(i);
                requestUrl.append(option.getName());
                requestUrl.append("=");
                if (option.getValue() != null) {
                    if (option.getValue() instanceof String) {
                        requestUrl.append("'" + option.getValue() + "'");
                    } else {
                        requestUrl.append(option.getValue());
                    }
                } else {
                    requestUrl.append("null");
                }

                if (i + 1 < functionOptions.size()) {
                    requestUrl.append(",");
                }
            }

            requestUrl.append(")");
        }
        return requestUrl.toString();
    }

    /**
     * Gets the HTTP method
     *
     * @return the HTTP method
     */
    @Override
    public HttpMethod getHttpMethod() {
        return method;
    }

    /**
     * Gets the headers
     *
     * @return the headers
     */
    @Override
    public List getHeaders() {
        return headersOptions;
    }

    /**
     * Adds a header to this request
     *
     * @param header the name of the header
     * @param value  the value of the header
     */
    @Override
    public void addHeader(final String header, final String value) {
        headersOptions.add(new HeaderOption(header, value));
    }

    /**
     * Sets useCaches parameter to cache the response
     *
     * @param useCaches the value of useCaches
     */
    @Override
    public void setUseCaches(boolean useCaches) {
        this.useCaches = useCaches;
    }

    /**
     * Gets useCaches parameter
     *
     * @return the value of useCaches
     */
    @Override
    public boolean getUseCaches() {
        return useCaches;
    }

    /**
     * Sends this request
     *
     * @param method           the HTTP method
     * @param callback         the callback when this request complements
     * @param serializedObject the object to serialize as the body
     * @param              the type of the callback result
     * @param              the type of the serialized body
     */
    @SuppressWarnings("unchecked")
    protected  void send(final HttpMethod method,
                                 final ICallback callback,
                                 final T2 serializedObject) {
        this.method = method;
        client.getHttpProvider().send(this, callback, (Class) responseClass, serializedObject);
    }

    /**
     * Sends this request
     *
     * @param method           the HTTP method
     * @param serializedObject the object to serialize as the body
     * @param              the type of the callback result
     * @param              the type of the serialized body
     * @return the response object
     * @throws ClientException an exception occurs if there was an error while the request was sent
     */
    @SuppressWarnings("unchecked")
    protected  T1 send(final HttpMethod method,
                               final T2 serializedObject) throws ClientException {
        this.method = method;
        return (T1) client.getHttpProvider().send(this, responseClass, serializedObject);
    }

    /**
     * Gets the query options for this request
     *
     * @return the query options for this request
     */
    public List getQueryOptions() {
        return queryOptions;
    }

    /**
     * Gets the function options for this request
     *
     * @return the function options for this request
     */
    public List getFunctionOptions() {
        return functionOptions;
    }

    /**
     * Gets the full list of options for this request
     *
     * @return the full list of options for this request
     */
    public List getOptions() {
        final LinkedList list = new LinkedList<>();
        list.addAll(headersOptions);
        list.addAll(queryOptions);
        list.addAll(functionOptions);
        return Collections.unmodifiableList(list);
    }

    /**
     * Adds a query option
     *
     * @param option the query option to add
     */
    public void addQueryOption(final QueryOption option) {
        getQueryOptions().add(option);
    }

    /**
     * Adds a function option
     *
     * @param option the function option to add
     */
    public void addFunctionOption(final FunctionOption option) {
        getFunctionOptions().add(option);
    }

    /**
     * Sets the HTTP method
     *
     * @param httpMethod the HTTP method
     */
    public void setHttpMethod(final HttpMethod httpMethod) {
        method = httpMethod;
    }

    /**
     * Gets the client
     *
     * @return the client
     */
    public IBaseClient getClient() {
        return client;
    }

    /**
     * Gets the response type
     *
     * @return the response type
     */
	public Class getResponseType() {
        return responseClass;
    }
	
	   /**
     * Sets the max redirects
     * 
     * @param maxRedirects Max redirects that a request can take
     */
    public void setMaxRedirects(int maxRedirects) {
    	this.maxRedirects = maxRedirects;
    }
    
    /**
     * Gets the max redirects
     * 
     * @return Max redirects that a request can take
     */
    public int getMaxRedirects() {
    	return maxRedirects;
    }
    
    /**
     * Sets the should redirect callback
     * 
     * @param shouldRedirect Callback called before doing a redirect
     */
    public void setShouldRedirect(IShouldRedirect shouldRedirect) {
    	this.shouldRedirect = shouldRedirect;
    }
    
    /**
     * Gets the should redirect callback
     * 
     * @return Callback which is called before redirect
     */
    public IShouldRedirect getShouldRedirect() {
    	return shouldRedirect;
    }
    
    /**
     * Sets the should retry callback
     * 
     * @param shouldretry The callback called before retry
     */
    public void setShouldRetry(IShouldRetry shouldretry) {
    	this.shouldRetry = shouldretry;
    }
    
    /**
     * Gets the should retry callback
     * 
     * @return Callback called before retry
     */
    public IShouldRetry getShouldRetry() {
    	return shouldRetry;
    }
    
    /**
     * Sets the max retries
     * 
     * @param maxRetries Max retries for a request
     */
    public void setMaxRetries(int maxRetries) {
    	this.maxRetries = maxRetries;
    }
    
    /**
     * Gets max retries 
     * 
     * @return Max retries for a request
     */
    public int getMaxRetries() {
    	return maxRetries;
    }
    
    /**
     * Sets the delay in seconds between retires
     * 
     * @param delay Delay in seconds between retries
     */
    public void setDelay(long delay) {
    	this.delay = delay;
    }
    
    /**
     * Gets delay between retries
     * 
     * @return Delay between retries in seconds
     */
    public long getDelay() {
    	return delay;
    }
}