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package org.jboss.resteasy.client.jaxrs.internal;

import java.lang.reflect.Method;
import java.net.URI;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import jakarta.ws.rs.client.Invocation;
import jakarta.ws.rs.core.Configuration;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.core.UriBuilder;

import org.jboss.resteasy.client.jaxrs.ProxyBuilder;
import org.jboss.resteasy.client.jaxrs.ResteasyClient;
import org.jboss.resteasy.client.jaxrs.ResteasyWebTarget;
import org.jboss.resteasy.client.jaxrs.i18n.Messages;
import org.jboss.resteasy.specimpl.ResteasyUriBuilderImpl;
import org.jboss.resteasy.spi.ResteasyUriBuilder;

/**
 * @author Bill Burke
 * @version $Revision: 1 $
 */
public class ClientWebTarget implements ResteasyWebTarget {
    protected ResteasyClient client;
    protected UriBuilder uriBuilder;
    protected ClientConfiguration configuration;
    protected boolean chunked = false;

    protected ClientWebTarget(final ResteasyClient client, final ClientConfiguration configuration) {
        this.configuration = new ClientConfiguration(configuration);
        this.client = client;
    }

    public ClientWebTarget(final ResteasyClient client, final String uri, final ClientConfiguration configuration)
            throws IllegalArgumentException, NullPointerException {
        this(client, configuration);
        uriBuilder = uriBuilderFromUri(uri);
    }

    public ClientWebTarget(final ResteasyClient client, final URI uri, final ClientConfiguration configuration)
            throws NullPointerException {
        this(client, configuration);
        uriBuilder = uriBuilderFromUri(uri);
    }

    public ClientWebTarget(final ResteasyClient client, final UriBuilder uriBuilder, final ClientConfiguration configuration)
            throws NullPointerException {
        this(client, configuration);
        this.uriBuilder = uriBuilder.clone();
    }

    /**
     * Get a new UriBuilder explicitly using RESTEasy implementation
     * (instead of running UriBuilder.fromUri(uri) which relies on
     * current registered JAX-RS implementation)
     *
     * @param uri
     * @return
     */
    private static UriBuilder uriBuilderFromUri(URI uri) {
        return new ResteasyUriBuilderImpl().uri(uri);
    }

    private static UriBuilder uriBuilderFromUri(String uri) {
        return new ResteasyUriBuilderImpl().uri(uri);
    }

    @Override
    public ResteasyWebTarget clone() {
        client.abortIfClosed();
        UriBuilder copy = uriBuilder.clone();
        return newInstance(client, copy, configuration);
    }

    @Override
    public ResteasyClient getResteasyClient() {
        client.abortIfClosed();
        return client;
    }

    @Override
    public  T proxy(Class proxyInterface) {
        client.abortIfClosed();
        return createProxyBuilder(proxyInterface, this).build();
    }

    @Override
    public  ProxyBuilder proxyBuilder(Class proxyInterface) {
        client.abortIfClosed();
        if (proxyInterface == null)
            throw new NullPointerException(Messages.MESSAGES.proxyInterfaceWasNull());
        return createProxyBuilder(proxyInterface, this);
    }

    protected  ProxyBuilder createProxyBuilder(Class proxyInterface, ClientWebTarget cwt) {
        return ProxyBuilder.builder(proxyInterface, cwt);
    }

    @Override
    public URI getUri() {
        client.abortIfClosed();
        return uriBuilder.build();
    }

    @Override
    public UriBuilder getUriBuilder() {
        client.abortIfClosed();
        return uriBuilder.clone();
    }

    @Override
    public Configuration getConfiguration() {
        client.abortIfClosed();
        return configuration;
    }

    @Override
    public ResteasyWebTarget path(String path) throws NullPointerException {
        client.abortIfClosed();
        if (path == null)
            throw new NullPointerException(Messages.MESSAGES.pathWasNull());
        UriBuilder copy = uriBuilder.clone().path(path);
        return newInstance(client, copy, configuration);
    }

    @Override
    public ResteasyWebTarget path(Class resource) throws IllegalArgumentException {
        client.abortIfClosed();
        if (resource == null)
            throw new NullPointerException(Messages.MESSAGES.resourceWasNull());
        UriBuilder copy = uriBuilder.clone().path(resource);
        return newInstance(client, copy, configuration);
    }

    @Override
    public ResteasyWebTarget path(Method method) throws IllegalArgumentException {
        client.abortIfClosed();
        if (method == null)
            throw new NullPointerException(Messages.MESSAGES.methodWasNull());
        UriBuilder copy = uriBuilder.clone().path(method);
        return newInstance(client, copy, configuration);
    }

    @Override
    public ResteasyWebTarget resolveTemplate(String name, Object value) throws NullPointerException {
        client.abortIfClosed();
        if (name == null)
            throw new NullPointerException(Messages.MESSAGES.nameWasNull());
        if (value == null)
            throw new NullPointerException(Messages.MESSAGES.valueWasNull());
        String val = configuration.toString(value);
        UriBuilder copy = uriBuilder.clone().resolveTemplate(name, val);
        ClientWebTarget target = newInstance(client, copy, configuration);
        return target;
    }

    @Override
    public ResteasyWebTarget resolveTemplates(Map templateValues) throws NullPointerException {
        client.abortIfClosed();
        if (templateValues == null)
            throw new NullPointerException(Messages.MESSAGES.templateValuesWasNull());
        if (templateValues.isEmpty())
            return this;
        Map vals = new HashMap();
        for (Map.Entry entry : templateValues.entrySet()) {
            if (entry.getKey() == null || entry.getValue() == null)
                throw new NullPointerException(Messages.MESSAGES.templateValuesEntryWasNull());
            String val = configuration.toString(entry.getValue());
            vals.put(entry.getKey(), val);
        }
        UriBuilder copy = uriBuilder.clone().resolveTemplates(vals);
        ClientWebTarget target = newInstance(client, copy, configuration);
        return target;
    }

    @Override
    public ResteasyWebTarget resolveTemplate(String name, Object value, boolean encodeSlashInPath) throws NullPointerException {
        client.abortIfClosed();
        if (name == null)
            throw new NullPointerException(Messages.MESSAGES.nameWasNull());
        if (value == null)
            throw new NullPointerException(Messages.MESSAGES.valueWasNull());
        String val = configuration.toString(value);
        UriBuilder copy = uriBuilder.clone().resolveTemplate(name, val, encodeSlashInPath);
        ClientWebTarget target = newInstance(client, copy, configuration);
        return target;
    }

    @Override
    public ResteasyWebTarget resolveTemplateFromEncoded(String name, Object value) throws NullPointerException {
        client.abortIfClosed();
        if (name == null)
            throw new NullPointerException(Messages.MESSAGES.nameWasNull());
        if (value == null)
            throw new NullPointerException(Messages.MESSAGES.valueWasNull());
        String val = configuration.toString(value);
        UriBuilder copy = uriBuilder.clone().resolveTemplateFromEncoded(name, val);
        ClientWebTarget target = newInstance(client, copy, configuration);
        return target;
    }

    @Override
    public ResteasyWebTarget resolveTemplatesFromEncoded(Map templateValues) throws NullPointerException {
        client.abortIfClosed();
        if (templateValues == null)
            throw new NullPointerException(Messages.MESSAGES.templateValuesWasNull());
        if (templateValues.isEmpty())
            return this;
        Map vals = new HashMap();
        for (Map.Entry entry : templateValues.entrySet()) {
            if (entry.getKey() == null || entry.getValue() == null)
                throw new NullPointerException(Messages.MESSAGES.templateValuesEntryWasNull());
            String val = configuration.toString(entry.getValue());
            vals.put(entry.getKey(), val);
        }
        UriBuilder copy = uriBuilder.clone().resolveTemplatesFromEncoded(vals);
        ClientWebTarget target = newInstance(client, copy, configuration);
        return target;
    }

    @Override
    public ResteasyWebTarget resolveTemplates(Map templateValues, boolean encodeSlashInPath)
            throws NullPointerException {
        client.abortIfClosed();
        if (templateValues == null)
            throw new NullPointerException(Messages.MESSAGES.templateValuesWasNull());
        if (templateValues.isEmpty())
            return this;
        Map vals = new HashMap();
        for (Map.Entry entry : templateValues.entrySet()) {
            if (entry.getKey() == null || entry.getValue() == null)
                throw new NullPointerException(Messages.MESSAGES.templateValuesEntryWasNull());
            String val = configuration.toString(entry.getValue());
            vals.put(entry.getKey(), val);
        }
        UriBuilder copy = uriBuilder.clone().resolveTemplates(vals, encodeSlashInPath);
        ClientWebTarget target = newInstance(client, copy, configuration);
        return target;
    }

    @Override
    public ResteasyWebTarget matrixParam(String name, Object... values) throws NullPointerException {
        client.abortIfClosed();
        if (name == null)
            throw new NullPointerException(Messages.MESSAGES.nameWasNull());
        UriBuilder copy = uriBuilder.clone();
        if (values.length == 1 && values[0] == null) {
            copy.replaceMatrixParam(name, (Object[]) null);
        } else {
            String[] stringValues = toStringValues(values);
            copy.matrixParam(name, (Object[]) stringValues);
        }
        return newInstance(client, copy, configuration);
    }

    private String[] toStringValues(Object[] values) {
        String[] stringValues = new String[values.length];
        for (int i = 0; i < stringValues.length; i++) {
            stringValues[i] = configuration.toString(values[i]);
        }
        return stringValues;
    }

    @Override
    public ResteasyWebTarget queryParam(String name, Object... values) throws NullPointerException {
        client.abortIfClosed();
        if (name == null)
            throw new NullPointerException(Messages.MESSAGES.nameWasNull());
        UriBuilder copy = uriBuilder.clone();
        if (values == null || (values.length == 1 && values[0] == null)) {
            copy.replaceQueryParam(name, (Object[]) null);
        } else {
            String[] stringValues = toStringValues(values);
            copy.queryParam(name, (Object[]) stringValues);
        }
        return newInstance(client, copy, configuration);
    }

    @Override
    public ResteasyWebTarget queryParams(MultivaluedMap parameters)
            throws IllegalArgumentException, NullPointerException {
        client.abortIfClosed();
        if (parameters == null)
            throw new NullPointerException(Messages.MESSAGES.parametersWasNull());
        UriBuilder copy = uriBuilder.clone();
        for (Map.Entry> entry : parameters.entrySet()) {
            String[] stringValues = toStringValues(entry.getValue().toArray());
            copy.queryParam(entry.getKey(), (Object[]) stringValues);
        }
        return newInstance(client, copy, configuration);
    }

    @Override
    public ResteasyWebTarget queryParamNoTemplate(String name, Object... values) throws NullPointerException {
        client.abortIfClosed();
        if (name == null)
            throw new NullPointerException(Messages.MESSAGES.nameWasNull());

        //The whole array can be represented as one object, so we need to cast it to array of objects
        if (values.length == 1 && values[0].getClass().isArray() && !values[0].getClass().getComponentType().isPrimitive()) {
            values = (Object[]) values[0];
        }

        String[] stringValues = toStringValues(values);
        ResteasyUriBuilder copy;
        if (uriBuilder instanceof ResteasyUriBuilder) {
            copy = (ResteasyUriBuilder) uriBuilder.clone();
        } else {
            copy = ResteasyUriBuilder.fromTemplate(uriBuilder.toTemplate());
        }

        copy.clientQueryParam(name, (Object[]) stringValues);
        return newInstance(client, copy, configuration);
    }

    @Override
    public ResteasyWebTarget queryParamsNoTemplate(MultivaluedMap parameters)
            throws IllegalArgumentException, NullPointerException {
        client.abortIfClosed();
        if (parameters == null)
            throw new NullPointerException(Messages.MESSAGES.parametersWasNull());
        ResteasyUriBuilder copy;
        if (uriBuilder instanceof ResteasyUriBuilder) {
            copy = (ResteasyUriBuilder) uriBuilder.clone();
        } else {
            copy = ResteasyUriBuilder.fromTemplate(uriBuilder.toTemplate());
        }
        for (Map.Entry> entry : parameters.entrySet()) {
            String[] stringValues = toStringValues(entry.getValue().toArray());
            for (String val : stringValues) {
                copy.clientQueryParam(entry.getKey(), val);
            }
        }
        return newInstance(client, copy, configuration);
    }

    protected ClientWebTarget newInstance(ResteasyClient client, UriBuilder uriBuilder, ClientConfiguration configuration) {
        return new ClientWebTarget(client, uriBuilder, configuration);
    }

    @Override
    public Invocation.Builder request() {
        client.abortIfClosed();
        ClientInvocationBuilder builder = createClientInvocationBuilder(client, uriBuilder.build(), configuration);
        builder.setChunked(chunked);
        builder.setTarget(this);
        return builder;
    }

    @Override
    public Invocation.Builder request(String... acceptedResponseTypes) {
        client.abortIfClosed();
        ClientInvocationBuilder builder = createClientInvocationBuilder(client, uriBuilder.build(), configuration);
        builder.getHeaders().accept(acceptedResponseTypes);
        builder.setChunked(chunked);
        builder.setTarget(this);
        return builder;
    }

    @Override
    public Invocation.Builder request(MediaType... acceptedResponseTypes) {
        client.abortIfClosed();
        ClientInvocationBuilder builder = createClientInvocationBuilder(client, uriBuilder.build(), configuration);
        builder.getHeaders().accept(acceptedResponseTypes);
        builder.setChunked(chunked);
        builder.setTarget(this);
        return builder;
    }

    protected ClientInvocationBuilder createClientInvocationBuilder(ResteasyClient client, URI uri,
            ClientConfiguration configuration) {
        return new ClientInvocationBuilder(client, uri, configuration);
    }

    @Override
    public ResteasyWebTarget property(String name, Object value) {
        client.abortIfClosed();
        if (name == null)
            throw new NullPointerException(Messages.MESSAGES.nameWasNull());
        configuration.property(name, value);
        return this;
    }

    @Override
    public ResteasyWebTarget register(Class componentClass) {
        client.abortIfClosed();
        configuration.register(componentClass);
        return this;
    }

    @Override
    public ResteasyWebTarget register(Class componentClass, int priority) {
        client.abortIfClosed();
        configuration.register(componentClass, priority);
        return this;
    }

    @Override
    public ResteasyWebTarget register(Class componentClass, Class... contracts) {
        client.abortIfClosed();
        configuration.register(componentClass, contracts);
        return this;
    }

    @Override
    public ResteasyWebTarget register(Class componentClass, Map, Integer> contracts) {
        client.abortIfClosed();
        configuration.register(componentClass, contracts);
        return this;
    }

    @Override
    public ResteasyWebTarget register(Object component) {
        client.abortIfClosed();
        configuration.register(component);
        return this;
    }

    @Override
    public ResteasyWebTarget register(Object component, int priority) {
        client.abortIfClosed();
        configuration.register(component, priority);
        return this;
    }

    @Override
    public ResteasyWebTarget register(Object component, Class... contracts) {
        client.abortIfClosed();
        configuration.register(component, contracts);
        return this;
    }

    @Override
    public ResteasyWebTarget register(Object component, Map, Integer> contracts) {
        client.abortIfClosed();
        configuration.register(component, contracts);
        return this;
    }

    @Override
    public ResteasyWebTarget setChunked(boolean chunked) {
        this.chunked = chunked;
        return this;
    }
}




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