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sphere-java-client

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package io.sphere.internal.filters;

import io.sphere.client.filters.UserInputFilter;

import java.util.Map;

import static io.sphere.internal.util.QueryStringConstruction.clearParam;
import static io.sphere.internal.util.QueryStringConstruction.makeLink;
import static io.sphere.internal.util.QueryStringConstruction.toQueryString;

/** Helper base class for implementations of {@link io.sphere.client.filters.UserInputFilter}. */
public abstract class UserInputFilterBase implements UserInputFilter {
    /** Name of the query parameter representing this filter. */
    protected String queryParam;

    protected UserInputFilterBase(String queryParam) {
        this.queryParam = queryParam;
    }
    public String getQueryParamName() {
        return this.queryParam;
    }

    @Override public final String getClearLink(Map queryString) {
        return makeLink(toQueryString(clearParam(queryParam, queryString)));
    }
    @Override public final boolean isSet(Map queryString) {
        return parseValue(queryString) != null;
    }
}